As a result of japan’s increasing use of suicide attacks in 1945, allied leaders began
decreasing the number of bombing raids on japanese cities.
developing more accurate and effective anti0aircraft weapons.
thinking of a new strategy besides invading the japanese mainland.
weighing the pros and cons of surrendering to the japanese.

The correct answer for the question that is being presented above is this one: "thinking of a new strategy besides invading the Japanese mainland." Allies considered alternatives to invading Japan.  The U.S. had already lost several soldiers in both the Western and Eastern Front.  The Japanese also threaten to kill POWs if America invades Japan.  The Americans decided to use the atomic bomb and this led to Japan’s surrender and the war’s end.