President Vladimir Putin is open to peace in Ukraine and intense work is going on with the United States, but the conflict is so complicated that the rapid progress that Washington wants is difficult to achieve,

The U.S. and Ukraine announced on Wednesday an economic agreement after a weekslong press by President Donald Trump on Ukraine to compensate Washington for billions in military and economic assistance to help Ukraine repel the Russian invasion.

President Vladimir V. Putin of Russia ordered a three-day unilateral cease-fire in Ukraine next week, the Kremlin said on Monday, soon after President Trump reiterated his frustration with Russia’s refusal to stop the war.