The recently signed mutual defense treaty could be used to justify thewidening of the war in Ukraine, as the U.S. says North Korean and Russian troops are already battling Ukrainian forces.

There are two likely possibilities: one, that a North Korean artillery unit is deploying to the front line in western Russia or Ukraine; two, that a Russian unit will operate the tracked, four-person howitzers,

After supplying troops, North Korea is now sending weapons to aid Vladimir Putin's war effort in Ukraine. Photographs of M1989 Koksan self-propelled artillery being transported by train have surfaced on Russian Telegram channels and were later analyzed and geolocated by Western OSINT experts.

President Joe Biden is gathering South Korean President Yoon Suk Yeol and Japanese Prime Minister Shigeru Ishiba for talks.

U.S. President Joe Biden will meet with Japan and South Korea's leaders on Friday as they seek to preserve their diplomatic progress ahead of a new Trump administration that many fear could upend alliances worldwide.