Now into its third week, Russia's invasion of Ukraine saw one of its deadly attacks this weekend with strikes on a military base just miles from Poland's border.
And as Ukrainian forces continue to defend their country in the air and on the ground, concerns are mounting that a frustrated Russian President Vladimir Putin could turn to chemical weapons.
Though various diplomatic efforts to end the war have shown little success so far, senior U.S. and Chinese officials are set to meet this week over the war, as Moscow reportedly turns to Beijing for military and economic help.
