sentences:  On the other hand, the Allied operation had been over-insured; concerns over the strength of the Japanese garrison had left the Allies with a four to one advantage in the event.Operation Reckless was an unqualified success, and the loss of Hollandia made the Japanese strategic defence line at Wakde, to the west, and all Japanese positions to the east untenable.Japanese forces to the west were reconfigured to form a defence line through Biak and Manokwari, while Japanese 18th Army, still in defensive positions around Wewak, to the east, were faced with a 400-mile retreat through the jungle.