John Kerry set for first Moscow visit since start of Ukraine war

Kremlin sees trip by US secretary of state as a diplomatic victory for Russia
FILE - In this May 6, 2015 file photo, U.S. Secretary of State John Kerry speaks during a joint press conference with Foreign Minister Mahamoud Ali Youssouf at the Presidential Palace, in Dijbouti, Dijbouti. The State Department says Secretary of State John Kerry will travel to Russia this week for talks with Russian President Vladimir Putin. (AP Photo/Andrew Harnik)

John Kerry is to visit Moscow on Tuesday for the first time since the beginning of the Ukraine crisis that left relations between the US and Russia at a post-cold war low.