 Hampered by congestion in the beachhead and forced to divert effort to attack strongly held German positions along the route to the town, the 3rd Infantry Division was unable to assault Caen in force and was stopped short of the outskirts.Follow-up attacks were unsuccessful as German resistance solidified; abandoning the direct approach, Operation Perch—a pincer attack by I Corps and XXX Corps—was launched on 7 June, to encircle Caen from the east and west.I Corps, striking south out of the Orne bridgehead, was halted by the 21st Panzer Division and the attack by XXX Corps bogged down in front of Tilly-sur-Seulles, west of Caen, against the Panzer Lehr Division.