U.S. Army budget officials on Friday released the full list of 41 program eliminations and 39 program reductions.
Gear and Equipment
Some of the programs targeted for reduction had been overfunded by Congress at levels above the military's original request.
The sea services have laid out potential requirements for a "light" amphibious ship.
Three soldiers were taken to a hospital for assessment of what the Army said were minor injuries.
Lawmakers are hitting back against the Navy's plans to cut shipbuilding over the next several years.
As the global race for hypersonic weapons intensifies, the U.S. just decided to abandon one of its prototype programs.
The $178 billion request is $4 billion less than last fiscal year's $182 billion request, according to Army documents.
The Marine Corps wants $46 billion in 2021, almost identical to last year's $45.9 billion request.
The service plans to ditch more than 100 planes in its bomber, airlift, tanker and drone fleets in its 2021 budget request.
The Navy's construction budget for new warships is set to fall significantly in 2021.