When the United States military mobilization intensified after December 7th, 1941, thousands of jobs in war industries opened up as former migrant workers found new opportunities at industrial construction sites or entered military service. Shipyards and naval and air force bases in Jacksonville, Eglin Air Force near Pensacola, Opa-locka near Miami, Camp Blanding near Starke and Camp Gordon Johnston in Carrabelle drew former agricultural workers from South Florida as well as new workers from around the nation. –Florida Memory and the State Library and Archives of Florida How did World War II change life for many migrant workers? Check all that apply. They found work in factories. They signed up for the military. They finally found work on farms. They found new opportunities in industry. They left Florida due to the lack of naval bases.