Original sentence: Fearing that they would then be ordered to join the siege of Myitkyina, Calvert handed over Mogaung to Chinese troops, shut down his radios and retreated to Kamaing, where Stilwell had his headquarters
Edited sentence: Fearing that they would then be ordered to join the siege of Myitkyina, Calvert handed over Mogaung to Force X, shut down his radios and retreated to Kamaing, where Stilwell had his headquarters