An army aviation unit is an aviation-related unit of a nation's army, sometimes described as an air corps. These units are generally separate from a nation's dedicated air force, and usually comprise helicopters and light support fixed-wing aircraft. Prior to the establishment of separate national air forces, many armies had military aviation units, which as the importance of aviation increased, were spun off into independent services. As the separation between a nation's army and air force led to a divergence of priorities, many armies sought to re-establish their own aviation branches to best serve their own organic tactical needs.
U.S. soldiers in OH-58D Kiowa and AH-64 Apache helicopters conduct a combat air patrol in Iraq
Soldiers rappelling from a JGSDF UH-1J
A US Army CH-47 Chinook sling loads a Humvee
A British Army Air Corps Defender providing command and control
An army, ground force or land force is an armed force that fight primarily on land. In the broadest sense, it is the land-based military branch, service branch or armed service of a nation or country. It may also include aviation assets by possessing an army aviation component. Within a national military force, the word army may also mean a field army.
Azerbaijan Army soldiers at a 2020 parade
Indian Army soldiers on parade in 2014
A bronze crossbow trigger mechanism and butt plate that were mass-produced in the Warring States period (475-221 BCE)
An Ancient Greek warrior in bronze, Riace bronzes, c. 450 BCE.
