What We're Watching

North Korean troops move into Russia’s border area with Ukraine

Russia's President Vladimir Putin and North Korea's leader Kim Jong Un attend a farewell ceremony before Putin's departure at an airport in Pyongyang, North Korea June 19, 2024.
Russia's President Vladimir Putin and North Korea's leader Kim Jong Un attend a farewell ceremony before Putin's departure at an airport in Pyongyang, North Korea June 19, 2024.
Gavriil Grigorov/Reuters

Soldiers sent by Pyongyang have moved into Russia’s Kursk region, an area along the Russia-Ukraine border where Ukrainian forces staged a surprise incursion in August, according to Ukrainian intelligence.

Kyiv says that roughly 12,000 North Korean troops are in Russia, a far greater number than reported by the US, though it remains unclear precisely how many have entered what Ukraine referred to as the “combat zone.” Ukraine, its Western allies, and South Korea have all expressed concerns that North Korean troops will begin fighting alongside Russian forces.

As Pyongyang and Moscow bolster ties, Seoul is worried Russia could reward North Korea – which has supplied ballistic missiles and ammunition rounds to Russia for its war in Ukraine – with advanced weapons and technology that could threaten South Korea’s national security. In response, the South Korean government has warned that it could provide Kyiv with arms.

Though Russia pushed back on previous reports of North Korean troops within its borders, Russian President Vladimir Putin on Thursday didn’t deny their presence.

We’ll be watching to see if North Korean troops engage Ukrainian forces in the days ahead.

More For You

US President Donald Trump arrives to announce reciprocal tariffs against US trading partners in the Rose Garden of the White House in Washington, DC, USA, on April 2, 2025.
POOL via CNP/INSTARimages.com

From civil conflicts to trade wars to the rise of new technologies, GZERO runs through the stories that have shaped this year in geopolitics.

Ukrainian serviceman walks near apartment buildings damaged by Russian military strike, amid Russia's attack on Ukraine, in the frontline town of Kostiantynivka in Donetsk region, Ukraine December 20, 2025.
Oleg Petrasiuk/Press Service of the 24th King Danylo Separate Mechanized Brigade of the Ukrainian Armed Forces/Handout via REUTERS

Ukrainian intelligence services assassinated a senior Russian general on the streets of Moscow on Monday, detonating a bomb strapped to his car.