Several months after the
Japanese bombing of Pearl Harbor, Corona volunteered in the
Army Air Corps and resigned from his position with the union. He underwent
basic training at
Buckley Field in Colorado. During this training, he witnessed discriminatory treatment of Mexican-American and Jewish enlistees. He underwent officer training in
Cedar City, Utah, where he and the other cadets were not welcomed by the mostly-
Mormon local population. The locals resented the displacement of the students of
Southern Utah State College, the campus of which was taken over by the military. But they were even more concerned that the soldiers would "corrupt" their daughters. These fears were allayed after a town meeting, and led to warmer relations between the townspeople and the soldiers. After a year of training in Cedar City, Corona was sent to the
Army Air Base in
Santa Ana, California for
flight training. Corona was promoted to wing adjutant and had numerous clerical responsibilities. At the time, he worked a sixteen-hour day, half of which was spent in training, the other half in the office. In Santa Ana, he underwent a psychiatric evaluation designed to identify
homosexuals and political "deviants." He was labeled "probably patriotic," which was "most often applied to individuals from groups whose patriotism was considered questionable because of past grievances against the United States." Shortly after the evaluation, Corona was questioned by a group of officers about his political ideology and union activities. He was asked his opinion about the books
Mission to Moscow by
Joseph E. Davies and
One World by
Wendell Willkie. Shortly thereafter, he was subject to another round of interrogation, this one lasting even longer. While he was never informed of the results of these rounds of questioning, he received an order removing him from his squadron and the Air Corps. Following his dismissal from the Air Corps, Corona was sent to Torney Army General Hospital in
Palm Springs, California, where he was assigned mailroom duty. He was transferred to the surgical unit where he served as a surgical assistant. While in Palm Springs, he helped to organize soldiers' fora, which were held every Friday night at the home of the movie producer
Joseph Schenck. The fora discussed issues of racism,
religious discrimination, and
red-baiting. Corona transferred to the
Rainbow Division and received
combat training in Oklahoma. The Rainbow Division, however, did not enjoy a good reputation at the time, and Corona transferred to
Fort Benning for
paratrooper training. He was also trained as a
demolition specialist. Just prior to his unit's being deployed overseas, Corona requested a pass to go to Atlanta for the weekend. According to Corona, "a trick was pulled on me to ensure that I would either get kicked out of the paratroopers or miss the opportunity to go with my division to see combat." Disembarking, he was approached by two
military police officers, who requested to see his pass. Finding that it only allowed him to go to
Columbus, they locked him in the federal prison in Atlanta's Fort McDonald. He was not permitted to contact his commanding officer, and was held
incommunicado for over a month. He became friendly with a guard who had been a union member in Chicago who plotted to provide him access to a telephone. His unit having shipped out, he was unable to reach his commanding officer. While a prisoner, he got to know other soldiers who had been jailed for being
conscientious objectors who were able to smuggle letters out for him upon being discharged. The letters, which were addressed to his wife and Harry Bridges, resulted in his release. Corona was able to have the
AWOL removed from his record, but never received payment for the forty-five days he was incarcerated. Just when it seemed unlikely that Corona would be able to serve overseas, his colonel received a request for people for the
Signal Corps. He was sent to
Camp Crowder in
Neosho, Missouri for training, and was set to see duty in the
Pacific. However, while in Neoshe, he ran into Jaime Del Amo, who had served
Francoist Spain as Spanish consul in Los Angeles. Del Amo identified Corona as a "subversive" who had participated in the Spanish-speaking People's Congress, and Corona was sent to the processing center at
Camp McClellan in
Northern California, where he remained until the end of the war. According to Corona, "I entered the service as a buck private, and I left as one. I paid the price of having been involved in progressive causes and was one of those stigmatized and red-baited because of my involvement." ==Post-war==