https://en.wikipedia.org/wiki/Army
List of armies
Army aviation
"Army Aviation India deploying US troops" by Staff Sgt. Crista Yazzie U.S. Army, Pacific Public Affairs - http://www.defenseimagery.mil; VIRIN: 091023-A-0199Y-146http://www.army.mil/article/29334/Hawaii_based_Soldiers_train_with_Indian_army_aviators_at_YA_09/. Licensed under Public Domain via Commons - https://commons.wikimedia.org/wiki/File:Army_Aviation_India_deploying_US_troops.jpg#/media/File:Army_Aviation_India_deploying_US_troops.jpg