[ noun ] (military) a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission
"they called for artillery support"
Used in print(Booton Herndon, "From Custer to Korea, The 7th Cavalry"...)
Chandler left Carroll at the bottom of the hill to direct any reinforcements he could find to the fight .
Enemy reinforcements came pouring down , seeking a soft_spot .
Reinforcements came_up quickly to take_advantage of the opening made by Goulding 's platoon .(Public Papers of the Presidents of the U.S. D. D....)
The second capability is represented by our deployed ground , naval , and air forces in essential forward areas , together with ready reserves capable of effecting early emergency reinforcement .