[In this Saturday, June 25, 2016 photo released by Holy and Great Council, Orthodox Bishops attend the closing session of the Holy and Great Council at Kolymvari town on the island of Crete, greece. The leaders of the world's Orthodox Christian churches have gathered on the Greek island of Crete for a landmark meeting, despite a boycott by the Russian church and three other churches. (Sean Hawkey/ Holy and Great Council via AP)]CAIRO (AP) — The leaders of the world's Orthodox Christian churches ended a historic gathering on the Greek island of Crete on Sunday hoping to repeat the meeting within a decade, despite a boycott by the Russian church — the most populous in a religion of some 300 million people — and three other churches.