The Ukrainian naval headquarters fell into Russian hands on Thursday

The Ukrainian naval headquarters fell into Russian hands on Thursday. CBS News' Elizabeth Palmer reports Ukraine is trying to evacuate its troops from Crimea.

• Mar 20, 2014
• 2:14

Troops stormed a Ukrainian naval base one day after Crimean leaders signed a treaty to join Russia

Troops stormed a Ukrainian naval base one day after Crimean leaders signed a treaty to join Russia. CBS News' Elizabeth Palmer reports.

• Mar 19, 2014
• 1:44

Former Secretary of State Hillary Clinton said other countries could face Ukraine's fate and that Russian President Vladimir Putin can't be allowed to annex Crimea

In Crimea, Russian-backed forces stormed Ukraine's naval headquarters in Sevastapol, but no violence has been reported. Former Secretary of State Hillary Clinton said other countries could face Ukraine's fate and that Russian President Vladimir Putin can't be allowed to annex Crimea. Anthony Mason reports.

• Mar 19, 2014
• 1:07

Vice President Joe Biden condemned Russia's takeover of Crimea Tuesday

Vice President Joe Biden condemned Russia's takeover of Crimea Tuesday. Biden was in the region meeting with NATO allies and reassuring the former Soviet countries. Norah O'Donnell reports.

• Mar 19, 2014
• 1:06

The White House has promised there will be additional retaliation for Russia's annexation of Crimea

The White House has promised there will be additional retaliation for Russia's annexation of Crimea. While administration officials don't rule out targeting Russian President Vladimir Putin with the next round of sanctions, they admit it's not likely. Bill Plante reports.

• Mar 18, 2014
• 1:41

Thousands of Ukrainian soldiers barricaded in their bases across the Crimean peninsula remain on constant alert while surrounded by hostile pro-Russian armed men

Thousands of Ukrainian soldiers barricaded in their bases across the Crimean peninsula remain on constant alert while surrounded by hostile pro-Russian armed men. The Ukrainian defense ministry has authorized its soldiers to use their weapons after an armed attack on a Ukrainian base. Elizabeth Palmer reports.

• Mar 18, 2014
• 1:43

Amid fears that the Russian annexation of Crimea is the just the beginning of things to come, Ukrainian forces along the Russian border have begun preparing for war.

Amid fears that the Russian annexation of Crimea is the just the beginning of things to come, Ukrainian forces along the Russian border have begun preparing for war. Ukraine’s defense minister has put the call out for tens of thousands of volunteers to take up arms in case of a Russian invasion. Charlie D'Agata reports.

• Mar 18, 2014
• 1:57

Secretary of State John Kerry told CBS News affiliate WUSA that while Russian leaders may be pretending to ignore sanctions imposed on them because of their actions in Ukraine, they'll soon learn that "this bites"

Secretary of State John Kerry told CBS News affiliate WUSA that while Russian leaders may be pretending to ignore sanctions imposed on them because of their actions in Ukraine, "when they go home and their cronies and friends lose their apartments and their rich properties and they can't move their money and they can't travel to places," they’ll figure out that "this bites."

• Mar 18, 2014
• 2:45

CBS News Senior National Security Analyst Juan Zarate argues that sanctioning Russian President Vladimir Putin for his actions in Ukraine won’t expedite Russia’s financial isolation

CBS News Senior National Security Analyst Juan Zarate argues that sanctioning Russian President Vladimir Putin directly for his actions in Ukraine won’t expedite Russia’s financial isolation.

• Mar 18, 2014
• 3:16

The White House has not reacted to Putin's decision Monday to recognize Crimea as an independent state

The White House has not reacted to Putin's decision Monday to recognize Crimea as an independent state. That announcement came just hours after President Obama announced sanctions and threatened further action if Russia does not respond. White House officials say the president is holding back because he still wants to leave the door open for a negotiated solution. Bill Plante reports.

• Mar 18, 2014
• 2:07

Ukraine is calling up tens of thousands of reservists in case they must defend the country's eastern border

Ukraine is calling up tens of thousands of reservists in case they must defend the country's eastern border. CBS News' Charlie D'Agata reports from Donetsk, Ukraine.

• Mar 18, 2014
• 1:57

President Obama made a statement from the White House on the situation in Ukraine

President Obama made a statement from the White House on the situation in Ukraine, in which he announced expanded sanctions against Russia and voiced his support for the people and government of Ukraine. Bill Plante and Elizabeth Palmer report.

• Mar 17, 2014
• 7:51

Crimea's residents head to the polls to vote in a referendum that will determine whether Crimea will secede from the Ukraine and join Russia

Crimea's residents head to the polls to vote in a referendum that will determine whether Crimea will secede from the Ukraine and join Russia. As Elizabeth Palmer reports, in the first few hours of voting turnout appeared to be heavy, and is likely to hand supporters of annexation to Russia a decisive victory.

• Mar 16, 2014
• 1:11

The ballots and polling stations are ready in Crimea on the eve of the referendum on whether to join the Russian Federation. Ukrainian soldiers remain blockaded in their bases and the head of Crimea's Ukrainian council hasn't been seen since his arrest

The ballots and polling stations are ready in Crimea on the eve of the referendum on whether to join the Russian Federation. Ukrainian soldiers remain blockaded in their bases and the head of Crimea's Ukrainian council hasn't been seen since his arrest last Sunday. Elizabeth Palmer reports.

• Mar 15, 2014
• 2:28

All four Ukrainian children adopted by American couple finally arrive home after being caught up in the political crisis

The fourth Ukrainian child adopted by an American couple finally arrived in the U.S. after the whole family was caught up in the country's political crisis. Lisa and David Bundy say they experienced violence in Kiev's Independence Square as they waited for adoption papers to be finalized and are glad to be home with their children. Mike Paluska of WGCL-TV reports.

• Mar 15, 2014
• 1:56

U.S. attempts to stall an upcoming referendum on Ukraine's Crimean peninsula failed. The residents will decide whether to secede from Ukraine and join Russia

U.S. attempts to stall an upcoming referendum on Ukraine's Crimean peninsula failed. The residents will decide whether to secede from Ukraine and join Russia. But, as Jeff Pegues reports, tension is building ahead of the vote.

• Mar 15, 2014
• 2:27

Secretary of State John Kerry met with Russian Foreign Minister Sergey Lavrov in London. Kerry issued a set of proposals, including for Russia to call off Crimea’s referendum on joining the Russian Federation, but Lavrov dismissed virtually every one.

Secretary of State John Kerry met with Russian Foreign Minister Sergey Lavrov in London. Kerry issued a set of proposals, including for Russia to call off Crimea’s referendum on joining the Russian Federation, but Lavrov dismissed virtually every one. Margaret Brennan reports.

• Mar 14, 2014
• 1:59

Sergey Aksionov, the leader of the drive to hand Crimea to Russia, became the region’s new prime minister after thousands of Russian soldiers rolled into Crimea and armed militias he'd recruited whipped up pro-Russian sentiment.

Sergey Aksionov, the leader of the drive to hand Crimea to Russia, became the region’s new prime minister after thousands of Russian soldiers rolled into Crimea and armed militias he'd recruited whipped up pro-Russian sentiment. Elizabeth Palmer reports.

• Mar 14, 2014
• 2:37

Secretary of State John Kerry and Russia's Foreign Minister Sergey Lavrov are meeting in London to discuss the crisis in Ukraine

Secretary of State John Kerry and Russia's Foreign Minister Sergey Lavrov are meeting in London to discuss the crisis in Ukraine. Kerry is urging Lavrov to pullback in Crimea and negotiate, or Russia will face sanctions from the U.S. and Europe. CBS News State Department correspondent Margaret Brennan reports.

• Mar 14, 2014
• 1:45

Clashes between pro-Russia and pro-Western demonstrators turned deadly in the eastern city of Donetsk. The clashes raised concern that Russian President Vladimir Putin will use rising violence as a reason to expand his troop presence into the region

Clashes between pro-Russia and pro-Western demonstrators turned deadly in the eastern city of Donetsk. The clashes raised concern that Russian President Vladimir Putin will use rising violence as a reason to expand his troop presence into the region beyond Crimea. Charlie D’Agata reports.

• Mar 13, 2014
• 1:59

Secretary of state says Russia has approximately 20,000 troops in Ukraine's Crimean peninsula - not enough to "march in and take over all of Ukraine, but that could change very quickly"

Secretary of State John Kerry says Russia has approximately 20,000 troops in Ukraine's Crimean peninsula - not enough to "march in and take over all of Ukraine, but that could change very quickly."

• Mar 13, 2014
• 1:47

President Obama warns Russia that the U.S. and other nations will be forced to "apply a cost" if Russia persists in meddling within Ukraine

President Obama warns Russia that the U.S. and other nations will be forced to "apply a cost" if Russia persists in meddling within Ukraine.

• Mar 12, 2014
• 7:13

John Brennan says Russia’s military intervention in Crimea presents a moment for all parties involved to avoid provocations that could lead to bloodshed

John Brennan says Russia’s military intervention in Crimea presents a moment for all parties involved to avoid provocations that could lead to bloodshed.

• Mar 11, 2014
• 1:34

Crimea is preparing for a referendum that could determine whether or not it remains part of Ukraine

Crimea is preparing for a referendum that could determine whether or not it remains part of Ukraine. With Russian forces firmly in control of Crimea's border posts, many Crimeans believe the country would be better off if Russia controlled it. Elizabeth Palmer reports.

• Mar 10, 2014
• 2:32

The Jenkinses traveled to Kiev hoping to return to Kansas quickly with their four-newly adopted Ukrainian children

The Jenkinses traveled to Kiev hoping to return to Kansas quickly with their four-newly adopted Ukrainian children. However, they found themselves in the midst of a political revolution, unsure if they would return to the U.S. as a family. CBS News' Elaine Quijano reports.

• Mar 10, 2014
• 4:14

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