Ukraine claimed Saturday to have struck one of Russia’s largest oil refineries in a drone attack, starting a fire at the facility more than 700 miles into Russian territory.

Fiber-optic drones are highly dangerous, as they can't be jammed with traditional electronic warfare and are difficult to detect.

Russian troops launched 94 drones at Ukraine on the night of January 12. The air defense forces shot down two of them, according to the Air Forces of the Armed Forces of Ukraine. On the night of January 12,

Donald Trump has said that a meeting is being set up between him and Vladimir Putin to end the “bloody mess” of the war in Ukraine.

President-elect Trump said late Thursday that a meeting is in the works with Russian President Vladimir Putin to discuss ending the Kremlin's invasion of Ukraine. Why it matters: Trump said on the campaign trail that he would swiftly end the nearly three-year-old war in Ukraine within 24 hours of taking office.

The war in Ukraine has reshaped global politics and brought devastating consequences to both nations involved. With battles raging for over a year, the conflict has evolved into a grinding war of attrition.