What was the situation in the spring and summer of 1945, when truman had to make his decision? check all of the boxes that apply. the allies were ready to transfer their war resources from europe to the pacific. japan was busily rearming and threatening to strike back. japan’s leaders were refusing to surrender. us resources had been stretched thin, and the united states’ ability to invade was limited. japan’s ability to make war had been badly crippled. the united states was inflicting heavy damage by bombing japan’s cities.