This week in the War, 1–7 March 1943: Battle of the Bismarck Sea

The Battle of the Bismarck Sea was fought, this week in the war, 2–4 March 1943.

After being alerted by their naval code breakers, the Americans and Australians launched air attacks against a Japanese convoy that was carrying reinforcements to New Guinea. All of the Japanese troop transports and half of their destroyer escort were sunk with heavy loss of life.