FILE- In this Friday, Nov. 24, 2017 file photo, Azerbaijan's President Ilham Aliyev waves as he arrives for an Eastern Partnership Summit in Brussels. Voters in the oil-rich Caspian Sea nation of Azerbaijan are set to cast their ballots in a snap presidential election on Wednesday, April 11, 2018 that is all but certain to extend the rule of President Ilham Aliyev by another seven years. (AP Photo/Olivier Matthys, File)