text:  Not for the first time since the Russian invasion of Ukraine more than two years ago, there's an urgent scrutiny of Ukraine's international allies and the lengths they're going to to try and ease the situation on the ground. That urgency has grown following the bombing of a children's hospital in Kiev by a Russian missile, an attack the city's mayor said was among the worst since the beginning of the war. You'll hear from someone caught up in that attack in a moment.