Turkey has marched dozens of coup suspects past a hostile crowd at the start of their trial near Ankara.
Most of the 221 suspects are high-ranking military officers, accused of trying to oust President Recep Tayyip Erdogan last July.
Ex-air force commander Akin Ozturk was the first in a long line of defendants. There were calls for death sentences, though Turkish law does not allow that.
In the crackdown, police have arrested two teachers who are on hunger strike.