'Ukraine Suffered Significant Losses': US Admits Kyiv's Counteroffensive Failure Against Russia

Ukraine's Western backers have raised concerns over its slow counteroffensive against Russian forces. White House National Security Advisor Jake Sullivan described Ukraine's offensive operation as 'hard going'. The U.S. NSA, however, said it was too early to assess the counteroffensive's results. Ukrainian President Zelenskyy sought to assure allies about Kyiv's counterattack. Watch the video for more.