By February 16, 1945, thirty B-25s from all four squadrons of the 1^st Bomb Group—called the “Gambay Group—had converged at Hanchung for a huge raid against railroad yards at Shihkiachwang (Shijiazhuang), Hopeh (Hebei) Province, on the following day. Because their fighter escort failed to join them, the bombers separated into two elements and diverted to alternate targets in the big Yellow River bend. The first element turned south to attack railroad yards at Yunchen. The 1^st Bomb Squadron’s Mitchells formed "Benton" flight, and 4^th and 3^rd Squadron planes made up "Charlotte." Nearly all bombs missed their targets and landed in rice paddies or villages outside the target area. The second element was slightly more effective. The 2^nd Bomb Squadron and remainder of the 3^rd Squadron, forming "Akron" and "Detroit" flights, turned north and attacked railroad yards, tracks, and barracks at Linfen. After a delay caused by foul weather, the four squadrons flew a successful joint mission against machine shops and rails at Taiyuan on February 21.

Pilot of a B-25H, A/C #719, Capt. Mark T. Seacrest led the 3rd Bomb Squadron element, along with three 4th Bomb Squadron planes, on a joint mission from Hanchung. Their objective was to bomb and strafe the Yellow River Bridge. Providing close escort were eight 3rd Fighter Group P-40s that did their job well., despite being attacked by Japanese fighters, and eight 312th Fighter Wing P-47s as top cover that "hit the deck."