United States Military Officer. The son of a Russian Orthodox priest, Pash moved with his family to Russia at a young age. With the coming of the Russian Revolution, he joined the White Russian forces fighting against the Communist revolutionaries. Eventually returning to the United States, he settled in Los Angeles where he became a high school teacher. A reserve Army officer, he was called to active service shortly before the outbreak of the Second World War and was assigned to duty with military intelligence. When war was declared, Lt. Colonel Pash was assigned Chief of Security for the Manhattan Project, serving until 1943. During this time, he began investigating possible security breaches of the Radiation Laboratory at the University of California Berkeley and in the process, would single out Dr. J. Robert Oppenheimer. His investigation would later play a key role in the 1953 investigation of Oppenheimer's ties to Communism. In 1943, Pash was sent to Europe where he was assigned the military officer in charge of the ALSOS Mission, the American mission to capture Nazi atomic weapon scientists and laboratories, and would serve near the front of the Allied advance until war's end. In 1948, he was assigned to duty with the Central Intelligence Agency (CIA) where he would work until 1951. He retired from the Army at the rank of Colonel in 1957.
United States Military Officer. The son of a Russian Orthodox priest, Pash moved with his family to Russia at a young age. With the coming of the Russian Revolution, he joined the White Russian forces fighting against the Communist revolutionaries. Eventually returning to the United States, he settled in Los Angeles where he became a high school teacher. A reserve Army officer, he was called to active service shortly before the outbreak of the Second World War and was assigned to duty with military intelligence. When war was declared, Lt. Colonel Pash was assigned Chief of Security for the Manhattan Project, serving until 1943. During this time, he began investigating possible security breaches of the Radiation Laboratory at the University of California Berkeley and in the process, would single out Dr. J. Robert Oppenheimer. His investigation would later play a key role in the 1953 investigation of Oppenheimer's ties to Communism. In 1943, Pash was sent to Europe where he was assigned the military officer in charge of the ALSOS Mission, the American mission to capture Nazi atomic weapon scientists and laboratories, and would serve near the front of the Allied advance until war's end. In 1948, he was assigned to duty with the Central Intelligence Agency (CIA) where he would work until 1951. He retired from the Army at the rank of Colonel in 1957.
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