Cavalla (SS-244) On her maiden patrol in July 1944, USS Cavalla made contact with heavy enemy surface craft, including a giant carrier, but, because of orders, could not fire a single torpedo. With the battle for the Marianas in full swing, the USS Cavalla was ordered to report contacts but not to engage the enemy. Sending information about the enemy's whereabouts provided scant satisfaction to the submarine's crew and officers until fleet headquarters advised them the contact reports had touched off the Marianas "Turkey Shoot" and near annihilation of the Japanese Navy's air force. To top things off, the Cavalla's patience was rewarded a few days later when with the "don't shoot" restriction lifted, she sank a large carrier.