In May 1920, there was a major rebellion against the occupying Soviet Russian 11th Red Army in Ganja, who wanted to restore the Musavatists to power. The rebellion was crushed by government troops by May 31. Leaders of the ADR either fled to the Democratic Republic of Georgia, which was the last independent Caucasian country that was invaded in 1921 by Soviet Russia, then to Turkey and Iran, or were captured by Bolsheviks, like Mammed Amin Rasulzade, who was later allowed to emigrate (leave the country), or were executed (killed) like Gen. Selimov, Gen. Sulkevich, Gen. Agalarov, a total of over 20 generals, or assassinated by Armenian terrorists like Fatali Khan Khoyski and Behbudagha Javanshir. Most students and citizens travelling abroad remained in those countries never to return again to their country. Other important ADR military leaders like the former Minister of Defense General Samedbey Mehmandarov and deputy defense minister General Ali-Agha Shikhlinski (who was called "the God of Artillery" ) were at first arrested, but then released two months later thanks to efforts of Nariman Narimanov. Gen. Mehmandarov and Gen. Shikhlinsky spent their last years teaching in the Azerbaijan SSR military school.