Some 1.5 million protesters carried anti-government banners, red-and-white Turkish flags and pictures of Mustafa Kemal Ataturk, who founded the secular republic in 1923. Turkish flags hung from balconies and windows, as well as buses and fishing boats and yachts bobbing in Izmir’s bay. “I am here to defend my country,” said Yuksel Uysal, a teacher. “I am here to defend Ataturk’s revolution.”