Western equipment has slotted in to Ukraine's embattled, Soviet-era military throughout the war, including long-range missiles and advanced fighter jets.

Pope Francis has called for a “negotiation” to end the war in Ukraine in a Christmas Day message where he appealed for weapons to be laid down in global conflicts and reconciliation between enemies.

Russia attacked Ukraine's energy system and some cities in an "inhuman" Christmas Day assault, Ukraine's President Volodymyr Zelenskyy said.

Russia launches a Christmas Day missile attack on Ukraine as the war enters its third year. NBC News’ Erin McLaughlin reports on the shifting battleground there and in Washington, D.C.

President Joe Biden said on Wednesday he asked the U.S. Defense Department to continue its surge of weapons deliveries to Ukraine after condemning Russia's Christmas Day attack against some of Ukraine's cities and its energy system.

Pope Francis has called for negotiations between Ukraine and Russia to end the war triggered by Russia's invasion of Ukraine in 2022. In his traditional Christmas Day address, the Pope said "boldness [was] needed to open the door" to dialogue "in order to achieve a just and lasting peace" between the two sides.

Zelensky warns of greater military cooperation between Moscow and Pyongyang, including sending more troops and military equipment

Back then, in the first weeks of the war, Russia and Ukraine conducted several rounds of talks in person and online aimed at ending the conflict; although a framework for peace called the Istanbul Communiqué was drawn up,

Russia launched a huge Christmas Day attack on Ukraine with cruise and ballistic missiles, as well as drones. The Russian attack wounded at least six people in the northeastern city of Kharkiv and killed one in the region of Dnipropetrovsk,

A number of rebel factions agreed to dissolve and be integrated under the defense ministry, according to the Syrian state-run news service, as Hayat Tahrir al-Sham, the fighters who overthrew the country’s leader, try to establish a single national military. Here’s a visual guide to the tangled alliances and rivalries in Syria.

In recent months, the United States has provided Ukraine with hundreds of air defense missiles, and more are on the way, the White House’s press service released