Secretary of State Antony Blinken and Secretary of Defense Lloyd Austin traveled in secrecy to Ukraine on Sunday to meet with Ukrainian President Volodymyr Zelensky, marking the first visit by high-ranking U.S. officials to war-torn Kyiv since Russia invaded in late February. Their visit was only confirmed after they were safely out of Ukraine. The two officials spoke with reporters about the three-hour meeting after they arrived in Poland early Monday morning. “We’re seeing that when it comes to Russian war aims, Russia is failing. Ukraine is succeeding,” Blinken said. The U.S. promised Ukrai…