Okla. Stat. tit. 21, § 1265.2

Whoever destroys, impairs, injures, interferes or tampers with real or personal property with intent to hinder, delay or interfere with the preparation of the United States or of any of the states for defense or for war, or with the prosecution of war by the United States, shall be guilty of a Class B4 felony offense punishable by imprisonment for not more than ten (10) years, or by a fine of not more than Ten Thousand Dollars ($10,000.00), or both; provided, if such person so acts with the intent to hinder, delay or interfere with the preparation of the United States or of any of the states for defense or for war, or with the prosecution of war by the United States, the minimum punishment shall be imprisonment for not less than one (1) year.