ISTANBUL The Turkish metropolis of Istanbul once again became the stage for high-stakes diplomacy, with peace talks underway between Russia and Ukraine in a renewed bid to end the war. On Friday, a flurry of meetings is expected in Istanbul involving delegations from Russia, Ukraine, the United States and Türkiye, according to Turkish Foreign Ministry sources. While trilateral talks are planned between the US, Ukraine and Türkiye as well as between Russia, Ukraine and Türkiye, it remains