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 14, 2022, 3:16 PM EDT
Mariupol residents evacuate during lull in violence
There was a lull in attacks by Russian forces on the coastal Ukrainian city of Mariupol on Monday, allowing the first mass civilian evacuation from the city, according to Petro Andrushenko, an adviser to the mayor.
About 160 cars fled the city Monday, carrying what's estimated to be hundreds of civilians, he said.
Heavy shelling and air bombardments impeded previous efforts to get civilians out and to allow for humanitarian supplies to be brought in.
The Mariupol City Council reported Sunday that 2,187 residents had been killed since the start of the invasion. Ukrainian Deputy Prime Minister Iryna Vereschuk said last week that the city was "beyond a humanitarian disaster," with most roads destroyed, little communication with the outside and no power, gas or heat.
Anastasia Erashova cries as she hugs the one remaining living child of her three children in a corridor of a hospital in Mariupol, eastern Ukraine, March 11, 2022. Anastasia's other two children were killed during the shelling of Mariupol.
Evgeniy Maloletka/AP
A fire burns in an apartment building after it was hit by the shelling of a residential district in Mariupol, Ukraine, March 11, 2022.
Evgeniy Maloletka/AP
-ABC News' Patrick Reevell
Mar 14, 2022, 2:46 PM EDT
Russian violence getting 'increasingly indiscriminate': US official
The Russian military is trying to subdue population centers "using more and more long-range fires, which are increasingly indiscriminate in terms of what they're hitting," a senior U.S. defense official warned Monday.
An elderly woman hugs a fireman after being evacuated from an apartment building hit by shelling in the Obolon district of Kyiv in Ukraine, March 14, 2022.
State Emergency Service of Ukraine/AFP via Getty Images
Russia has now launched more than 900 missiles against Ukraine, according to the official.
But the official said "almost all of Russia's advances remain stalled."
The Russians closest to Kyiv are still near Hostomel Airport, about 9 miles from the city center. Some troops are moving in behind those advance forces, "but not at a great pace," the official said.
Rescuers work next to a residential building damaged by shelling, as Russia's attack on Ukraine continues, in Kyiv, Ukraine, in this handout picture released March 14, 2022.
State Emergency Service of Ukraine/via Reuters
The coastal city of Mariupol remains isolated and under heavy bombardment, with Russian forces to the north and east, though Ukrainians are continuing to fight back, the official said.
Significant fighting continues over Kharkiv in northeast Ukraine, with Russians relying more and more on long-range missile attacks, the official said.
The official said the U.S. is seeing a new line of advance, with 50 to 60 vehicles moving from the southwest of Kharkiv down toward the town of Izyum.
"The assessment is that they are trying to block off the Donbass area and to prevent the flow westward of any Ukrainian armed forces that would be in the eastern part of the country, prevent[ing] them from coming to the assistance of other Ukrainian defenders near Kyiv," the official said.
-ABC News' Matt Seyler
Mar 14, 2022, 12:45 PM EDT
Pfizer still delivering medicine to Russia but donating profits to Ukraine
Pfizer said it won't stop delivering medicine to Russia, but will donate all profits from Russia to humanitarian support for Ukraine.
Pfizer also said it won't hold new trials in Russia and will stop recruiting new patients for its ongoing trials in the country.
Additionally, Pfizer said it "will cease all planned investments with local suppliers intended to build manufacturing capacity in the country."
-ABC News' Christine Theodorou
Mar 14, 2022, 12:05 PM EDT
At least 636 civilians killed in Ukraine
At least 636 civilians have been killed and another 1,125 injured in Ukraine since the attack began last month, the Office of the UN High Commissioner for Human Rights said.
These numbers are the verified deaths and injuries; actual death and injury figures are expected to be much higher, the OHCHR said.
Firefighters evacuate an elderly woman from an apartment building hit by shelling in Kyiv, Ukraine, March 14, 2022.
Ukrainian State Emergency Service via AP
Most of the casualties were due to explosive weapons impacting a wide area, including shelling, missiles and air strikes, the OHCHR said.
