MICHAEL KIMMAGE is Professor of History at the Catholic University of America. He is the author of Collisions: The Origins of the War in Ukraine and the New Global Instability.

President Donald Trump is downplaying the possibility of sending Ukraine long-range weapons as Kyiv awaits an injection of ...

President Donald Trump's ultimatum to Russia to accept a peace deal in Ukraine within 50 days or face bruising sanctions on its energy exports has given the Kremlin extra time to pursue its summer ...

Russian President Vladimir Putin has sacrificed an estimated 1 million of his soldiers, killed and wounded, in a three-year ...

Senate Republicans had barely enough votes Tuesday to advance President Trump's proposal to claw back money appropriated for ...

US leader said that Washington decided to continue providing weapons and other military equipment to Kiev if Europe picked up the bill for such supplies ...

Ukraine may soon get the surface-to-surface Army Tactical Missile System (ATACMS)—pronounced “attack ’ems”—that would give Kyiv the ability to strike deeper into Russia. Moreover, in the latest deal, ...

House Republicans were so livid about the idea of continuing to aid Ukraine in its fight against Russian aggression that they ...

Trump on Tuesday offered a more cautious tone on what to expect after he threatened Russia a day earlier with steep tariffs.

In announcing a new weapons package for Ukraine and a ceasefire deadline for Putin, President Trump reversed his previous stance towards Russia’s invasion. But will the weapons have the intended ...

In December 2022, President Joseph R. Biden Jr. agreed to give Ukraine a Patriot missile battery, an advanced ground-based air-defense system. Two more followed, along with an unknown number of ...

The U.N. Security Council has authorized continued reporting on attacks on ships in the Red Sea by Yemen’s Houthi rebels, who ...