As the war entered its second month this week, Ukraine conducted several successful counterattacks and, on
Tuesday, declared that Russia has "lost its offensive potential." Russia, however, has made steady advances in Mariupol after Ukraine on
Monday rejected a deadline to surrender the city entering the center on
Thursday. Intense shelling also continued throughout the week, reportedly causing an ammonia leak at a facility in Sumy on
Monday, and striking an oil storage facility in Lviv on
Saturday. Ukraine on
Thursday accused Russia of using phosphorus weapons, and on
Saturday Russia said they'd be willing to use nuclear weapons against Europe and the US if existentially threatened. On
Friday, Russia declared that the "first stage" of their invasion is complete and that focus will now be turned to eastern Ukraine, while the Pentagon said Russia has begun mobilizing reinforcements after facing heavy losses. On
Wednesday,NATO pledged to double its eastern flanks and said they'd help Ukraine prepare for possible chemical, biological, or nuclear threats. Meanwhile, Western leaders met in Brussels on
Thursday, and Biden travelled to Poland on
Friday. In a speech on
Saturday, he said Putin "cannot remain in power," though the White House quickly clarified he wasn't calling for a regime change. On
Sunday, the UN reported that 1,119 civilians, including 99 children, have been killed since the start of the war.