Halls of Montezuma
Richard Widmark leads an all-star cast of leathernecks (Jack Palance, Robert Wagner, Karl Malden, Richard Boone, and Jack Webb) into battle on a heavily-fortified enemy island.  Their objective is a Japanese rocket sit in the island's interior, and the combat-packed story follows the squad from beachhead to battle, as they pick their way trough enemy-infested jungles.  Along the way, Widmark is transformed from a former school teacher into a combat-wizened leader, and his disparate squad of men is forged into a cohesive fighting unit.