A handout photo made available by the Presidential Photographers Division (PPD) shows Filipino President Rodrigo Duterte (R) shaking hands with Russian Deputy Foreign Minister Igor Vladimirovich Morgulov (L) upon his arrival at Vnukovo-2 Airport in Moscow, Russia, on May 23, 2017. Duterte declared martial law in the entire Mindanao island amid the ongoing clashes between government troops and the Maute group of terrorists in Marawi City. Photo: EPA