¶1This is an application to this court in the exercise of its original jurisdiction for a writ of mandamus commanding respondent, as governor of the state, to appoint fire and police commissioners for the city of Omaha. In his answer to the alternative writ respondent denies the authority of the court to coerce executive action in any case, and alleges that by reason of the judgment in State v. Moores, 55 Nebr., 480, performance of the duty enjoined by the statute (sec. 167, ch. 12a, Compthed Statutes, 1901) would be necessarily barren of practical results, A com*695plete history of the litigation in which the present action had its origin will he found in some earlier opinions of this court (Moores Case, supra; State v. Kennedy, 60 Nebr., 300; Redell v. Moores, 63 Nebr., 219) to which reference is made. It is conceded that the statute directs the governor, in imperative terms, to do just what the relator has requested him to do. “Immediately on the taking effect of this act, the governor shall appoint.” This is the language of section 167; and it is therein further provided that “whenever a vacancy shall occur in any board of fire and police commissioners either by death, resignation, removal from the city or any other cause, the governor shall appoint a commissioner to fill such vacancy.” It is also conceded that this is a constitutional and valid law, but it is claimed that authority to enforce it has not been committed to the judicial branch of the government. The argument is that the three departments into which all governmental powers axe divided are co-ordinate; that each is entirely independent of the others, and that-the issuance of a mandamus against the governor, in whom is vested the supreme executive power, is justifiable only on the theory that the executive department is inferior to the judicial department and that the right of command is given to one, and the duty of obedience imposed upon the other. This argument is certainly plausible, but whether it is sound is a point upon which the adjudged cases are in irreconcilable conflict. The right of the courts to determine all judicial questions, whenever and however they may arise, is given by the constitution in explicit terms and is indisputable; but equally clear and incontestable is the right of the executive officers named in the constitution to exercise all powers properly belonging to the executive department. There is an obvious logical difficulty in maintaining that two departments of government are of equal rank, and independent of each other, if one may command and the other must obey. A member of the executive department who performs an official duty in obedience to a writ of mandamus is a *696passive instrument in the hands of the court; he is not in any proper sense an actor; he executes, not his own purpose, but a purpose originating in the judicial department of the government; he is in truth nothing more than the agency through which the court exercises an executive power. Considering the matter theoretically,- and leaving practical results and past adjudications entirely out of view, it is hardly possible to escape the conclusion that the farthest limit of judicial authority in cases of this kind is to hear and determine; to give judgment establishing the relator’s right, without issuing compulsory process to the respondent, whether he be the chief magistrate or some other member of the executive department. There seems to be no good reason for holding that one member of a co-ordinate branch of the government should be exempt from judicial control and the others subject to it. The principle of exemption from mandamus is grounded upon a distinct constitutional inhibition and does not at all depend upon official rank. Constitution, art. 2, sec. 1. As was said by Chief Justice Marshall in Marbury v. Madison, 1 Cranch [U. S.], 137, “It is not by the office of the person to whom the writ is directed, but the nature of the thing to be done, that the propriety or impropriety of issuing a mandamus is to be determined.” Our own decisions make no distinction between the governor and the other officers of the executive department. Whether the writ should be granted or refused has been made in every case to depend upon the character of the act in question and not upon the office of the respondent. The argument that the judiciary in issuing a mandamus against a member of the executive branch of the government is thereby indirectly, and in violation of the constitution (art. 2, sec. 1), exercising a power properly belonging to the executive department, has never appealed convincingly to this court. In numerous cases the writ has gone against the auditor; and the right to issue it to any officer of the executive department, including the governor, is so thoroughly established by repeated *697decisions that the question can be no longer regarded as open to discussion. All judicial controversies must end some time and this one seems to have run its course. It must be admitted that, according to the clear weight of authority, the chief executive can not, under any circumstances, be controlled by the writ of mandamus; but in this state, and in some other jurisdictions, a different rule prevails. The doctrine of this court is that when the law in positive terms enjoins upon the governor, or other officer of the executive department, a mere ministerial duty, leaving him no choice or discretion in regard to the •matter,—no judgment to exercise as to whether he will or will not act,—the writ of mandamus may issue, and its issuance is an appropriate exercise of judicial power. In State v. Thayer, 31 Nebr., 82, a mandamus was issued against the governor and other executive officers, constituting the state board of canvassers, commanding them to canvass the votes cast for the relator as a candidate for judge of the sixth judicial district. In that case the court considered the authorities bearing upon the right of the judiciary to issue a coercive writ against the governor of a state, and reached the conclusion that the correct rule is that laid down in Maxwell’s Pleading & Practice, page 735, in the following language: “There is a conflict in the authorities as to the right of a court to grant a mandamus against the governor of a state to compel the performance of a merely ministerial duty. That the courts have jurisdiction in such cases there seems to be no doubt. In a free government no officer is above the law, and should not be permitted to disregard it with impunity. No good reason can be given why a governor, whose duty it is to see that the laA-rs are executed, should himself be permitted to set them at defiance.'’ In State v. Elder, 31 Nebr., 169, which was an application for a mandamus to compel the speaker of the house of representatives to- open and publish the returns of a general election, the court said, in an opinion allowing the writ, that the leading cases denying the authority of the courts to mandamus *698ike governor of a state had been again examined and dis approved. In State v. Boyd, 36 Nebr., 60, the court took cognizance of an application for a mandamus to compel the governor to approve a bill of the State Journal Company for blanks and stationery. In State v. Boyd, 36 Nebr., 181, this court determined on the merits an application for a mandamus to compel Governor Boyd to issue a proclamation for the election of three additional members of congress. The writ was denied, not for want of jurisdiction, but because the right to apportion representatives among the states belongs exclusively to congress. State v. Holcomb, 46 Nebr., 88, was a case in which the court tried and determined a controversy involving the relator’s right to a writ of mandamus commanding the governor to approve an official bond. It is true that in some of these cases the jurisdiction of the court was not challenged, but that circumstance is not important. In determining the cases on the merits the court necessarily decided in favor of its own jurisdiction. The authority of the courts in such cases does not, of course, depend upon the consent of the respondent. If jurisdiction exists it is given by law and does not rest upon mere official complaisance. State v. Stone, 120 Mo., 428. It seems to be conceded that the relator has a sufficient interest in the performance of the particular duty enjoined by the statute to entitle him to maintain this proceeding if the court has jurisdiction to entertain it. And it is evident that the refusal of the governor to discharge the duty of appointing fire and police commissioners for Omaha was not influenced in any degree by the character or quality of the act which the law, in imperative terms, directs, him to perform. In other words, the position taken by respondent is not defended on the ground that the appointment of commissioners would not be the performance of a ministerial duty. The defense rests upon broader ground; it is that there is no authority in the court to coerce the governor, in any ease, or under any circumstances, to exercise an executive power. Tim conclusion *699to which we are compelled by our own decisions is that we have, not only jurisdiction to decide the controversy, but authority to issue the peremptory writ to enforce our decision. Whether the peremptory writ should actually issue in a case of this kind is a question of great delicacy and one which we do not here decide. Speaking of the cases in which the power of the courts to mandamus the governor is asserted, Mr. Freeman says in the note to Greenwood v. Routt, 31 Am. St. Rep. [Colo.], 284: “Whthe it must be admitted that these cases by no means constitute the majority of those bearing upon the subject, yet they seem to us to be based upon the better reasoning, and more in accord with what has been the long adopted policy of the highest judicial tribunal in the land, the supreme court of the United States.” Nothing further need, we think, be said on the question of jurisdiction.
¶2The second proposition discussed by counsel was decided in the Kennedy Case, and was, we think, decided rightly. The doctrine of res judicata is that a question once determined by a judgment on the merits is forever settled, so far as the litigants and those in privity with them are concerned. The question decided is, whthe the decision stands, a sealed and closed question; the final judgment, sentence, or decree fixing the rights of the parties ends the controversy, and is in any future litigation conclusive evidence of those rights. Counsel for relator concede the general rule as to the conclusiveness of judgments, but insist that it has no application to a case in which a sovereign state is seeking to enforce obedience to its laws. In other words, counsel contend that the state, being vested with absolute power to govern society, and having supreme authority to make and administer laws, is not bound by an adverse adjudication in a matter pertaining to its sovereignty. “If such were the rule,” said Mr. Justice Story in Gelston v. Hoyt, 3 Wheaton [U. S.], 246, 317, “it would be a perfect anomaly in the law and utterly subversive of the first principles of reciprocal justice.” The fundamental conception of a judgment is *700a judicial decision binding upon all the parties to the controversy. As defined by our own statute (sec. 428, Code of Civil Procedure) it “is the final determination of the rights of the parties in an action.” By this statute the state has declared the legal effect and consequence of a judgment; it has said that, as between the parties, the judgment shall end the controversy and end it forever. The state, in the exercise of its governmental functions, is not obliged to invoke the aid of the courts in any case; but when it does so it assumes the character of an ordinary suitor, and is bound by self-imposed restraints; it claims' no advantage over its adversary, and, though one is a sovereign and the other a citizen, they stand equal before the law. This is a just principle, and in it we see no serious danger to the public weal. It was recognized and enforced in England without judicial dissent as far back as the Duchess of Kingston’s Case, 20 State Trials, 355. And in the highest court of this country it was early held, by the unanimous' opinion of the judges, that the government was conclusively bound by a decision rendered against it in its sovereign character. Gelston v. Hoyt, supra. When a state brings an action for the enforcement of its criminal or revenue laws, it acts, of course, in its governmental capacity, but it is bound, nevertheless, by an adverse decision. The question decided can not be again litigated between the same parties, either in a civil or criminal case. Coffey v. United States, 116 U. S., 436; New Orleans v. Citizens’ Bank, 167 U. S., 371. Notwithstanding what has been said by counsel for relator, we are still of opinion that Holsworth v. O’Chander, 49 Nebr., 42; O’Connell v. Chicago T. R. Co., 184 Ill., 308, and People v. Smith, 93 Cal., 490, are direct authority upon the point wa are now considering. In ea,ch of these cases the state was asserting a right on behalf of the general public; it was endeavoring as a sovereign power, to execute a public law; it was not seeking to recover or establish title to corporate property; and yet it was held to be concluded by the former adjudication, not on the untenable theory *701that it was a party to the litigation only in its corporate capacity, but because the decision was, in accordance with the general rule, indisputable evidence of the rights of the litigants. McClesky v. State, 4 Tex. Civ. App., 322, is also directly in point. In that case the state was surely acting in its governmental capacity; it was seeking to prevent the usurpation of a franchise, and to oust the defendants from holding and exercising offices that liad no legal existence; it was endeavoring, as the relator in this case is, to put the administration of public affairs in the hands of the duly constituted agents of the public.
¶3The right of the state to oust the present members of the board of fire and police commissioners of the city of Omaha has been once tried and determined, and, under existing conditions, the judgment rendered is an effective bar to another suit for the same purpose. The right of the mayor’s appointees to hold the offices was the thing adjudged in State v. Moores, and it is the only thing to be adjudged in this action. The decision in the Moores Gase is not law, but for the purposes of this litigation it stands in place of the law. The governor may, of course, appoint, but in the face of a plea of res judicata we can not put his appointees in possession of the offices. The court is held in bondage by its own error. St at pro ratione voluntas is the rule of decision for this case.
¶4The writ is denied.
¶5Weit denied.
¶6The following opinion on rehearing was fthed July 22, 1902:
¶71. Abstract Questions of Law: Subject of Litigation: Beal Parties: Bes in Dispute: Bes Judicata. Abstract questions of law can not. be made the subject of litigation. There must be v real parties, and a res in dispute that will become res judieala when the litigation is determined.
¶83. Former Determination: Fire and Police Commissioners: Appointment by Mayor and Council: Governor. The former determination of this court that certain parties were entitled to hold the office of fire and police commissioners of the city of Omaha, under the appointment of the mayor and council of the city, is not binding on the governor, so as to prevent his appointment of commissioners under the provisions of the act for the incorporation of metropolitan cities.
¶93. Bight of Parties: Bes Judicata. The right of the parties in that litigation to the term in dispute therein is res juiMeakt, but the principle of law announced, having been found erroneous and overruled, will not be followed.
¶10After the former opinion in this case the relator fthed what is by him denominated a motion for a new trial. This being an original action in this court, relator assumed that he was entitled to use this form of motion. After argument the court announced to the parties that the motion would be treated as a motion for a rehearing under rule 7, and not as a motion for a new trial. The reason for this view is that a new’' trial is a reconsideration of an issue of fact (Code of Civil Procedure, sec. 314), and in this case no evidence was taken and no issue of fact was presented. The sole office of the motion is to point out errors in the former opinion of the court. This is the province of a motion for rehearing. First Nat. Bank v. Yocum, 12 Nebr., 208. The court, after argument, being desirous of further considering the question presented, both parties wmre allowed time to fthe further briefs, and *703the case was submitted as upon argument after rehearing had been allowed.
¶11The power of the legislature to impose upon the governor the duty of appointing the board of fire and police commissioners for the city of Omaha was declared in Redell v. Moores, 63 Nebr., 219, overruling State v. Moores, 55 Nebr., 480, 41 L. R. A., 624. This question has not been discussed in the present proceeding, both parties regarding the matter as settled. Upon the former hearing there was much discussion upon the question whether the general rule as to the conclusiveness of judgments can be applied to sovereign states whthe acting in governmental capacity, and in the opinion (State v. Savage, ante, p. 684) it is said: “The state, in the exercise of its governmental functions, is not obliged to invoke the aid of the courts in any case; but when it does so it as-, sumes the character of an ordinary suitor, and is bound by self-imposed restraints; it claims no advantage over its adversary, and, though one is a sovereign, and the other a citizen, they stand equal before the law.” Upon the present hearing, the application of the rule in this case has been much discussed. The doctrine of res judicata requires that when a thing is determined by a court of competent jurisdiction the parties to that litigation shall not be allowed in any other case to retry the matter. The rule is of universal application. No proper party to litigation, whether sovereign or subject, is exempt from its control. To apply the rule it is necessary first to ascertain what issue was determined in the former litigation. It is said by respondent’s attorneys in their brief:
“In the Moores Case the parties based their respective claims wholly upon the source from which they were derived. There was no common source. They claimed through entirely different sources. Whthe the immediate question was the right to the offices for a limited term, a determination of that question necessarily involved a determination as to the location of the appointing power. A determination of that question was necessary, impera*704tive and unavoidable. A decision of the case could not be reached without first deciding that question. When that was determined the whole case was determined. That was the only question debated or decided. In whom was the appointing power, in. the governor or the mayor? That was the only question submitted to the court, and the only question argued.or decided.”
¶12This is a very plausible statement of the point insisted upon; but is it entirely sound? It was undoubtedly necessary to “determine the location of the appointing power” but was that the thing (res) in litigation, the substantive matter that the respective parties were contending for? Or was it a proposition of law called in to assist in determining the right of the respective parties to the thing in controversy?
¶13That action was begun on the relation of the attorney general against J. H. Peabody et ah, who were appointed by the governor. They answered, setting up their appointments as members of the board of fire and police commissioners for the city of Omaha. Peter W. Birkhauser et al., upon their application, were allowed to intervene, setting up their right to the office by virtue of an appointment from the mayor and council of the city. Each party demurred to the pleadings of the other, and the question presented was, which party, under the law, is entitled to hold the office,—the respondents for the term for which' they had been appointed by the governor, or the interveners for the term for which they had been appointed by the mayor and council?
¶14The object of the attorney general undoubtedly was to obtain from this court a construction of the law; that is, to ascertain whether, under the law, the governor should appoint, or the duty devolve upon the city authorities. That was the question argued by counsel, and discussed and decided by the court; but was it, in the legal sense, the subject-matter of the litigation? It seems clearly not. If the question had been presented to the court as the thing to be litigated, it would not have entertained it. *705The relator would have been told that this was not a moot court. Abstract questions of law can not be made the subject of litigation. There must be real parties, and a res in dispute that will become res judicata when the litigation is ended. In the Moores Case the thing in dispute was the office itself, and it was determined that the interveners were entitled to the office for the term of their appointment, and respondents were ousted. This ds res judicata. And in State v. Kennedy, 60 Nebr., 300, some of the respondents were, still holding the terms adjudicated in the former case, and the doctrine of res judicata was applied.
¶15In the determination of a case legal principles are invoked, and the conclusion of the court thereon announced. Whether such conclusions shall be followed, without further investigation, in subsequent litigation, frequently depends upon the principles of stare decisis. When such conclusion becomes a rule of property, it is adhered to until changed by statute; but when no rule of property is established, it is the duty of the court to re-examine and overrule its former decision when shown to be fundamentally wrong. State v. Hill, 47 Nebr., 456. The thing determined by the litigation becomes res judicata, and can not be afterwards questioned between the parties, although' the rule of law by which the decision was controlled is afterwards found to have been incorrectly applied, and such application is no longer binding upon the court. The former is res judicata, and the latter is to be measured by the principles of stare decisis.
¶16It being conceded that no legal appointments have been made, and that there are no legal incumbents of the office, and that the law requires the governor to make the appointments, it is manifest that he is not prevented from, so doing by an erroneous determination of the right of certain parties to a prior and different term. We conclude, therefore, that it is now the duty of the respondent to appoint a board of fire-and-police commissioners for the citv of Omaha under the statute in question. '
¶17*706The majority of the court is satisfied with the decision in Redell v. Moores, supra, but as it is not questioned in this proceeding, the writer has made no investigation of the questions therein discussed.
¶18In the former opinion in this case it was said: “Whether ' the peremptory writ should actually issue in a case of .this kind is a question of great delicacy, and one which we do not here decide.” There has been no further discussion of that question by counsel, and we do not feel called upon now to determine or further consider it. It is not to' be supposed that the peremptory writ will be necessary.
¶19The judgment entered in this case is modified in accordance with this opinion.
¶20Judgment accordingly.
¶21Holcomb, J.
¶22I am not prepared to express an opinion different from the one heretofore concurred in by me.