Ukrainian President Volodymyr Zelenskyy arrived in Washington, D.C., as the North Atlantic Treaty Organization (NATO) summit got underway with providing long-term support for Ukraine in the war against Russia topping the agenda. The Ukrainian leader will seek to shore up and boost allied support for his country, meet with PresidentJoe Biden and deliver a major speech on the sidelines of the summit, CNN reported. The U.S. promised “significant” announcements on Ukraine during the three-day global gathering that began Tuesday. The country will fight for “decisive actions” from the U.S. and Europ…