Yegorov was born near Samara in central Russia.
He joined the army of the Russian Empire in 1902 and qualified as an officer in 1905.
As an army officer, he helped quell the Revolution of 1905.
During World War I he rose to the rank of Lieutenenant-Colonel and was wounded five times.
In 1904 he had joined the Socialist Revolutionary Party, but after the Bolsheviks took power in the October Revolution (1917) he accepted the new régime and became a commander in the Red Army.
Yegorov commanded the Southwestern Front during the Polish-Soviet War.

After the Polish-Soviet War, Yegorov was sent as a military adviser to China (1925-1926).
In 1927 he became commander of the Belarussian Military District.
In 1931 Yegorov was appointed Deputy People's Commissar for Defence and Chief of the General Staff of the Red Army.
In 1934 he became a candidate member of the Central Committee of the Communist Party of the Soviet Union.
In 1935 he became one of the first five Marshals of the Soviet Union when this rank was created.

Because of his old connections to Stalin and Budyonny, Yegorov seemed to be safe from the wave of arrests that swept through the Red Army in 1937 as the Great Purge gathered pace.

He was officially listed as one of the judges at Tukhachevsky's trial in June 1937.
But at the end of 1937 he was demoted to commander of the Transcaucasian Military District, and was arrested in February 1938 and his military writings were banned.
His downfall seems to have begun with a letter in the spring of 1937 from Combrig Fedor Sudakov of the Frunze Military Academy to Stalin questioning Yegorov's performance; a similar letter was sent by Combrig Yan Zhigur to Voroshilov on July 20, and Yegorov was further damaged by confessions extracted from officers arrested during the purge of the army.
Yegorov was shot on February 23, 1939.
After Stalin's death in 1953, Nikita Khrushchev rehabilitated the disgraced marshal.
Yegorov was born near Samara in central Russia. He joined the army of the Russian Empire in 1902 and qualified as an officer in 1905. As an army officer, he helped quell the Revolution of 1905. During World War I he rose to the rank of Lieutenenant-Colonel and was wounded five times. In 1904 he had joined the Socialist Revolutionary Party, but after the Bolsheviks took power in the October Revolution (1917) he accepted the new régime and became a commander in the Red Army. Yegorov commanded the Southwestern Front during the Polish-Soviet War.
After the Polish-Soviet War, Yegorov was sent as a military adviser to China (1925-1926). In 1927 he became commander of the Belarussian Military District. In 1931 Yegorov was appointed Deputy People's Commissar for Defence and Chief of the General Staff of the Red Army. In 1934 he became a candidate member of the Central Committee of the Communist Party of the Soviet Union. In 1935 he became one of the first five Marshals of the Soviet Union when this rank was created.
Because of his old connections to Stalin and Budyonny, Yegorov seemed to be safe from the wave of arrests that swept through the Red Army in 1937 as the Great Purge gathered pace. 
He was officially listed as one of the judges at Tukhachevsky's trial in June 1937. But at the end of 1937 he was demoted to commander of the Transcaucasian Military District, and was arrested in February 1938 and his military writings were banned. His downfall seems to have begun with a letter in the spring of 1937 from Combrig Fedor Sudakov of the Frunze Military Academy to Stalin questioning Yegorov's performance; a similar letter was sent by Combrig Yan Zhigur to Voroshilov on July 20, and Yegorov was further damaged by confessions extracted from officers arrested during the purge of the army. Yegorov was shot on February 23, 1939. After Stalin's death in 1953, Nikita Khrushchev rehabilitated the disgraced marshal.
Alexander Yegorov (soldier)