Peace efforts for Syria floundered on March 15 as a third round of talks that were sponsored by Russia and Turkey ended with no progress after rebels refused to show up to a meeting in Kazakhstan. Regime supporters Russia and Iran along with rebel-backer Turkey have been pushing negotiations in Astana since January after gains on the ground by Damascus turned the tables in the six-year war. The latest two-day meeting saw a delegation from Damascus meet with representatives from the three powers, but leaders of armed rebel groups stayed away for the first time over alleged violations of a fragile cease-fire deal.