Gafsa, Maknassy, and El Guettar (17-25 March) 543 Army Group's Plan for II Corps 543 The Corps Plan: Operation W OP 545 The Occupation of Gafsa 547 The Seizure of Station de Sened 548 The Advance Beyond Maknassy 550 18 Army Group Revises II Corps Mission, 22 March 553 Enemy Defense of Maknassy Pass, 23-25 March 554 The 1st Infantry Division Holds the Enemy Near El Guettar 557 Reinforced American Infantry Versus German Armor, 23 March 560