President Donald Trump and NATO Secretary General Mark Rutte announced what Rutte called a "really big" deal Monday for the US to send Ukraine weapons through NATO, replenishing the besieged country’s supplies of weapons.

President Trump is hosting NATO Secretary General Mark Rutte at the White House on Monday as the U.S. agrees to sell new and more weapons to Europe and Ukraine.

Trump agrees to sell billions in US arms to NATO countries including Germany, Finland and Denmark and others for quick distribution to Ukraine, following his ultimatum to Putin on peace talks.

What is known about US President Donald Trump's idea to supply Ukraine with American weapons using NATO funds, and why not all allies support this initiative, is analyzed in an article by RBC-Ukraine.

Russia launched four missiles and 136 drones into Ukraine overnight into Monday morning, according to Ukraine's air force.

Trump is expected to make a major announcement about Russia after meeting with Mark Rutte. Sen. Lindsey Graham said it will be "very aggressive."

According to sources, Trump’s shift in stance on supplying weapons to Ukraine resulted from months of efforts by EU and NATO leaders. Notably, Finnish President Alexander Stubb bonded with Trump during a golf tournament in Florida,

Sitting in the Oval Office with NATO Secretary-General Mark Rutte, and apparently fed up with being slow-walked by Russian President Vladimir Putin, Trump threatened the Kremlin with tough tariffs if it doesn't make a deal to end the war within 50 days. But perhaps more important was Trump's shift on weapons.

NATO Secretary General Mark Rutte is set to meet President Donald Trump this week on the heels of the U.S. leader announcing plans to sell NATO allies weaponry that it can then pass on to Ukraine.