In the weeks leading up to Russia invading Ukraine, President Vladimir Putin flew out from Moscow to visit two longtime allies.The first trip, on December 6, saw Putin touch down in New Delhi for a one-day meeting with India's Prime Minister Narendra Modi.Two months after that, on February 4, Putin jumped on a plane to Beijing for two days of talks with Chinese President Xi Jinping.Three weeks later, Russian troops and tanks rumbled across Ukr…