President Trump warned Ukraine not to strike Moscow with the military aid that the U.S. will begin sending soon. All of it sparking sharp reactions inside Russia. NBC News’ Keir Simmons reports.

Ukrainian President Volodymyr Zelenskyy thanked Trump for his “willingness to support Ukraine.” In Kyiv, resident Nina Tokar, ...

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 ...