The U.S. ambassador to the United Nations, Linda Thomas-Greenfield, said in a Twitter post that the pattern of attacks since Russian forces invaded Ukraine on Feb. 24 was "absolutely sickening."
Biden, others vow at G-7 to back Ukraine for 'as long as it takes'
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Linda Thomas-Greenfield, the U.S. ambassador to the U.N., said Washington will still push for additional sanctions if North Korea conducts a new nuclear test.
Envoy says U.S., allies preparing for North Korean nuclear test
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