Efforts to clear unexploded munitions in places like Iraq and Southeast Asia will stop for at least three months, according to a surprise announcement.

In an impassioned address to officials from countries supporting Ukraine, Mr. Zelensky said “a new chapter” would be starting for Europe and the rest of the world, requiring even more cooperation.

Surprised by Oct. 7 and fearful of another attack, Israel weakened safeguards meant to protect noncombatants, allowing officers to endanger up to 20 people in each airstrike. One of the deadliest bombardments of the 21st century followed.

They include a billionaire investor who supported Mr. Trump’s campaign, a former official who froze aid to Ukraine and a former executive at Uber.