FILE: PH, RUSSIAN NAVIES BOOST TIES. A tugboat escorts the large Russian anti-submarine ship Admiral Vinogradov upon its arrival at Pier 15, Manila South Harbor on Monday (April 8, 2019). The ship, together with another anti-submarine ship Admiral Tributs and sea tanker Irkut, are in the Philippines for a five-day goodwill visit which aims to bolster naval cooperation between Manila and Moscow. (PNA photo by Joey O. Razon)