More than 20 Americans are missing in action on the front lines in Ukraine, with a spike in casualties over the past six months as foreigners fill urgent gaps in defenses, according to a CNN investigation.

Ukrainian special operations forces have given an insight into the brutal, near-suicidal tactics of the North Koreans they have faced in intense fighting in the Russian border region of Kursk.

Russian gains in Ukraine have been slowed by personnel shortages, suggesting Moscow may not be able to sustain the war.

A new school textbook that likens Russia's war in Ukraine to the Soviet struggle against the Nazis and says Russia was "forced" to send troops into Ukraine was presented in Moscow on Monday. President Vladimir Putin casts the war,

Russia on Sunday claimed its troops had captured a strategically important town in eastern Ukraine, as part of a grinding campaign to weaken Kyiv’s grip on the country’s industrial heartland.

Soldiers from North Korea fighting on behalf of Moscow have reportedly pulled back from the frontline in Russia's Kursk region.

Russia’s Defense Ministry claims that Russian troops have fought their way into the center of a strategically important eastern Ukraine town and raised the Russian flag there after a monthslong battle.

For those with a vested interest in Ukraine, U.S. President Donald Trump's first week in office was a bit of a rollercoaster. During his first presidential term, Trump famously praised Russian President Vladimir Putin.

Moscow’s troops used the same pincer tactic on Velyka Novosilka that has enabled their recent capture of town after town in eastern Ukraine.