US army is divided into the Regular Army, the Army Reserve, and the Army National Guard.Other main branches of US army are Air Defense Artillery, Infantry, Aviation, Signal Corps, Corps of Engineers, and Armor. US army has following main ranks General, Lieutenant General , Major General , Brigadier General , Colonel , Lieutenant Colonel, Major , Captain , First Lieutenant , Second Lieutenant. Some of the famous recent wars fought by US army include Afghanistan war and Iraq war.
People’s Liberation Army China
PLA has following main ranks First Class General , General , Lieutenant General , Major General , Senior Colonel , Colonel , Lieutenant Colonel, Major, Senior Captain , Captain , First Lieutenant , Second Lieutenant and Cadet. PLA has participated in follow major wars and events Chinese Civil War against the Kuomintang (KMT) as the Chinese Red Army , World War II against the Empire of Japan ,Yangtze incident (the battle against British warships on the Yangtze river) , Korean War (Under the banner of the Chinese People’s Volunteer Army) , First Taiwan Strait Crisis, Second Taiwan Strait Crisis at Quemoy and Matsu , Sino-Indian War,Vietnam War, Sino-Soviet border conflict,Battle of the Paracel Islands, Sino-Vietnamese War , Border and naval skirmishes with Vietnam, Tiananmen Square protests of 1989,PLA Control of Hong Kong’s Military Defence.
Indian army operates 6 operational commands . Each command is headed by General Officer Commanding-in-Chief with the rank of Lieutenant General. Each command is directly affiliated to the Army HQ in New Delhi. Indian army has following main ranks General, Lieutenant General , Major General , Brigadier , Colonel , Lieutenant Colonel, Major , Captain , Lieutenant. Indian army has been involved in four wars with neighboring Pakistan and one with the People’s Republic of China.
British Army has been an active alley in US war on terror.