FILE - In this Saturday, Jan. 4, 2020, file photo, this photo provided by the U.S. Army, paratroopers assigned to 1st Brigade Combat Team, 82nd Airborne Division walk as they prepare equipment and load aircraft bound for the U.S. Central Command area of operations from Fort Bragg, N.C. A push led by pro-Iran factions to oust U.S. troops from Iraq is gaining momentum, bolstered by a Parliament vote in favor of a bill calling on the the government to remove them. But the path forward is unclear. (Spc. Hubert Delany III/U.S. Army via AP, File)