immediately following ww1 the economy in the us
Post–World War I recession The post–World War I recession was an economic recession that hit much of the world in the aftermath of World War I. In many nations, especially in North America, this growth continued during World War I as nations mobilized their economies to fight the war in Europe. After the war ended, the global economy began to decline. In the United States, 1918–1919 saw a modest economic retreat, but the next year saw a mild recovery. A more severe recession hit the United States in 1920 and 1921, when the global economy fell very sharply.
Great Depression in the United States By the end of 1941, before American entry into the war, defense spending and military mobilization had started one of the greatest booms in American history thus ending the last traces of unemployment.[69]