What were the economies of the US and Europe

like at the end of the world war 2 ?

Explanation:

America's involvement in World War II had a significant impact on the economy and workforce of the United States. American factories were retooled to produce goods to support the war effort and almost overnight the unemployment rate dropped to around 10%.

answer; i believe its called ; checks   and balances;

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.