Derry is a borough in Westmoreland County in the Commonwealth of Pennsylvania, 45 miles (72 km) east of Pittsburgh. The Borough of Derry, consisting of the town area, should not be confused with Derry Township, which is a separate municipality surrounding the borough. In 1900, the population numbered 2,347, and in 1910, 2,954. The population was 2,991 at the 2000 census.

What is military law?

Military law only applies to those in military service but is enforced during war and peace. Military law is a statutory code of rules and articles provided by Congress for the government and discipline of troops. Attorneys represent active-duty military personnel, military reservists, and former military personnel with "veteran" status. Military law cases may involve court-martial proceedings under the Uniform Code of Military Justice, and the re-employment rights of reserve military personnel called to active duty.