Ukraine's gas facilities have suffered severe damage from Russian drone and missile attacks, forcing the country to import more gas

LONDON (AP) — The Russia-Ukraine war has seen almost four years of failed peace plans, blueprints and high-level summits. A new U.S. push to end the fighting has set off the latest flurry of diplomacy, with American, European, Russian and Ukrainian officials all trying to shape the outcome of Europe’s deadliest conflict since World War II.

While Driscoll’s role as Army secretary typically involves bureaucratic tasks, he’s also taken on the challenge of diplomacy.

Kyiv Mayor Vitali Klitschko says the deadly rocket attacks set buildings ablaze and damaged infrastructure in the city.

KYIV, Ukraine — A senior Kremlin official confirmed Wednesday that U.S. special envoy Steve Witkoff is set to visit Moscow next week as efforts pick up speed to find a consensus on ending the nearly four-year war between Russia and Ukraine.

U.S. and Ukrainian officials sought to narrow the gaps between them on Monday over a plan to end the war in Ukraine, after agreeing to modify a U.S. proposal that Kyiv and its European allies saw as a Kremlin wish list.

Top European and Ukrainian envoys have met in Geneva ahead of talks with U.S. Secretary of State Marco Rubio about President Donald Trump's proposal to end Russia’s war on Ukraine.

The Trump plan for Gaza leans to Israeli terms. It makes disarming Hamas a central condition for any progress in rebuilding the devastated territory. It also lays out no strict timetable for a full Israeli troop withdrawal, making it conditional on deployment of an international security force.

ABC News’ Linsey Davis spoke with former U.S. Ambassador to Ukraine Steven Pifer on the Trump administration’s effort to broker an end to the almost four-year-long war between Ukraine and Russia.

Ukrainian, American and European officials gathered in Geneva on Nov. 23 to discuss a draft plan presented by Washington to end the war in Ukraine.