Russian President Vladimir Putin's "special military operation” into Ukraine began on Feb. 24, with troops crossing the border from Belarus and Russia. Moscow's forces have since been met with “stiff resistance” from Ukrainians, according to U.S. officials.
Russian forces retreated last week from the Kyiv suburbs, leaving behind a trail of destruction. After graphic images emerged of civilians lying dead in the streets of Bucha, U.S. and European officials accused Russian troops of committing war crimes.
A look at the two leaders at the center of the war in Ukraine and how they both rose to power, the difference in their leadership and what led to this moment in history.
Here's how the news is developing. All times Eastern.
Mar 25, 2022, 8:03 AM EDT
Ukrainian rescuers work to remove unexploded devices from homes
Video has emerged showing Ukrainian rescuers working to remove unexploded devices from civilian homes amid the Russian invasion.
The video, released Friday by the State Emergency Service of Ukraine and verified by ABC News, shows pyrotechnic units in the northern city of Chernihiv using special equipment to carefully search for and remove shells, missiles and mines that landed in houses but didn't explode.
The State Emergency Service of Ukraine said it was called in to seize ammunition 18 times over the past day. The agency warned people not to approach the objects because they could explode "at any time" and to immediately report such findings to rescuers or police.
-ABC News' Victoria Beaule
Mar 25, 2022, 7:34 AM EDT
Biden departs Brussels for Poland
U.S. President Joe Biden departed Belgium on Friday morning and was en route to Poland for the final leg of his four-day trip aimed at maintaining unity among allies and supporting Ukraine's defense against Russia.
U.S. President Joe Biden waves as he boards Air Force One at Melsbroek military airport in Brussels, Belgium, March 25, 2022. Biden is heading to Poland for the final leg of his four-day trip as he tries to maintain unity among allies and support Ukraine's defense against Russia's invasion.
Markus Schreiber/AP
Biden was seen boarding Air Force One in the European Union's de facto capital, Brussels, at 6:42 a.m. ET. He is expected to land in Rzeszow, Poland, at around 9:15 a.m. ET, where he will receive a briefing on the humanitarian response to the millions of people fleeing Ukraine in the wake of Russia's invasion. He will also meet with service members from the U.S. Army's 82nd Airborne Division.
-ABC News' Molly Nagle
Mar 25, 2022, 6:36 AM EDT
300 dead in airstrike on Mariupol theater, officials say
About 300 people were killed last week in a Russian airstrike on a drama theater-turned-bomb shelter in the besieged Ukrainian city of Mariupol, the city's government said Friday, citing eyewitnesses.
"We didn't want to believe in this horror," the Mariupol City Council. said in a statement. "But the words of those who were inside the building at the moment of this terrorist act say the opposite."
A view shows Donetsk Regional Theatre of Drama destroyed by an airstrike, in Mariupol, Ukraine, March 16, 2022.
Donetsk Regional Administration via Reuters
As many as 1,500 civilians had been taking refuge in the grand, columned Donetsk Regional Theatre of Drama in central Mariupol when it was struck on March 16, according to the Ukrainian government. Satellite images showed huge white letters on the pavement in front of and behind the building spelling out "CHILDREN" in Russian -- "DETI" -- to alert warplanes to those inside.
Video circulating online and verified by ABC News shows the immediate aftermath of the strike on the theater. People covered in dust are seen trying to make their way out of the theater, walking down from the first floor staircase in an area of the building that was still standing at the time.
A satellite image shows the Mariupol Drama Theatre before being bombing, with the word "children" in Russian written in large white letters on the pavement in front of and behind the building, in Mariupol, Ukraine, March 14, 2022.
Maxar Technologies
Since invading Ukraine on Feb. 24, Russian forces have been relentlessly bombarding Mariupol, destroying homes and leaving thousands of residents trapped. Ukraine has defied Russia's ultimatum for its troops to lay down arms and surrender the strategic southeastern port city of 430,000.
-ABC News Patrick Reevell
Mar 25, 2022, 5:20 AM EDT
Russia claims to have seized 5 more localities in Ukraine
Russia claimed Friday that its forces had captured five more localities in Ukraine.
"The grouping of troops of the Russian Armed Forces advanced another 4 kilometers overnight and captured Batmanka, Mikhailovka, Krasny Partizan, Stavki and Troitskoe," the Russian Ministry of Defense said in a statement.
