Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Turkish-Russian Tension Over Syria Opens Door to Washington Dorian Jones ISTANBUL - Questions about the future of Turkey's rapprochement with Russia are growing as fallout continues from Monday's killing of at least five Turkish soldiers by Russia-backed Syrian government forces. The rising Russia-Turkey tension over Syria is now seen as offering an opportunity to the United States to improve strained ties with Turkey. Turkish President Recep Tayyip Erdogan used a two-day visit to Ukraine to turn up the pressure on Moscow. During the visit, Erdogan condemned Russia's annexation of Ukraine's Crimean peninsula and signed a military deal with Kyiv. .