Diplomatically, President Truman's decision to use the atomic bomb in Japan may have been partially motivated by his desire to limit the involvement of the Soviet Union in the Pacific War.
President Harry Truman, was the 33rd President of the United States of America, who was in office during World War II, when he decided to use atomic bombs on the Japanese cities of Hiroshima and Nagasaki.
The main motivation for the attack was to get back on Japan after the Pearl Harbor attack, but some may argue that it was also a demonstration of power to drive other nations away from combat with the United States.
Nullification Crisis was caused by the introduction of a series of protective tariffs. ... The 1828 Tariff of Abominations which sparked the Nullification Crisis was the third protective tariff implemented by the government.