History 18 Campaigns 7 World War, 1939-1945 6 Armed Forces 5 Biography 4 Commando troops 4 Iraq War, 2003 4 Military weapons 4 Aerial operations, American 3 Army 3 Counterinsurgency 3 Military policy 3 Pictorial works 3 United States 3 United States. Marine Corps 3 Weapons systems 3 20th century 2 Airplanes, Military 2 Armored vehicles, Military 2 Business enterprises 2 C (Computer program language) 2 Criminal procedure 2 Early childhood education 2 Guidebooks 2 Iraq 2 Management 2 Military art and science 2 Personal narratives, American 2 Snipers 2 Sniping (Military science) 2