Turkish citizens are invited to a rally on Sunday at the July 15 Martyrs Bridge in Istanbul.
The Presidency's Twitter account said on Saturday that President Recep Tayyip Erdogan will also attend the rally and make a speech.
The Fetullah Terrorist Organization (FETO) and its U.S.-based leader Fetullah Gulen orchestrated the defeated coup of July 15, 2016 in Turkey, which left 251 people martyred and nearly 2,200 injured.