UNICEF warned about the higher risk for children fleeing the conflict. More than 500 unaccompanied children have crossed from Ukraine into Romania since the Russian invasion began.
Ukraine is outgunned by Russia but is making the most of its mobile weapons that allow Ukrainian troops to be more nimble. Some of the most important weapons are from the United States.
The deaths of three journalists this week in Ukraine are a reminder of the perils of covering conflicts from behind a camera. Photojournalist Marcus Yam is on assignment in Kyiv covering the war.
Other addresses to Congress by foreign leaders have paled compared to Winston Churchill welding with his words the alliance that overcame Adolph Hitler, until Volodymyr Zelenskyy's this week.
Images of Ukraine are flooding social media, but experts warn they don't show the full picture and can sometimes give a misleading account of the conflict on the ground.
The country has a high rate of tuberculosis. They'd been making progress but then came the pandemic ... and now the war. Doctors worryi about increased spread of this contagious and deadly disease.