Crimea Crisis: Everything You Need to Know

1. Ukraine warns new protests in East signal Russian attempt to destabilize its neighbor

Echoing recent events in Crimea, protesters in three Russian-speaking Ukrainian cities stormed government buildings and called for a referendum to join Russia. Ukraine’s prime minister says Moscow is responsible for the new unrest, while Secretary of State John Kerry warned that further efforts to destabilize the country will incur further costs for Russia. Judy Woodruff reports.

2. NATO expresses deepening concerns at buildup of Russian troops

Nato has suspended all practical civilian and military co-operation with Russia.

3. Ukraine PM: Concern over Russia is about global security, not just Ukraine

In an exclusive interview, chief foreign affairs correspondent Margaret Warner sits down with acting Ukrainian Prime Minister Arseniy Yatsenyuk in Kiev to discuss Western sanctions on Moscow, Russian President Vladimir Putin’s long-term intentions and a growing sense of unity among Ukrainians.

4. Crimea casts long shadow in Amsterdam, where G7 leaders meet

A major nuclear summit in the Netherlands is convening more than 50 world leaders, including President Obama. The meeting allows European and U.S. leaders to discuss a concerted response to Russia.

5. EU seals closer ties with Ukraine

The European Union has signed an agreement with Ukraine forging closer economic and political ties, as the crisis with Russia continues.

6. Putin formally annexes Crimea as part of Russia

Nicolai Petro is professor of politics at the University of Rhode Island, and is Fulbright research scholar in Ukraine.

7. President Obama imposes greater sanctions against Russia

President Obama provides an update on the situation in Ukraine and the steps that the United States is taking in response.

8. Ukrainian soldier killed as Crimean tension escalates

In an escalation of the tensions over the annexation of Crime, Ukraine says one of its soldiers has been killed during an attack on a base there.

9. West is ruled 'by the gun,' Putin says as he annexes Crimea

The Russian leader has approved legislation to draw that part of Ukraine into the Russian Federation — over the objections of the new leaders in Kiev and despite Western sanctions.

10. Crimea - A sovereign, independent state?

Russian president Vladimir Putin formally declares Crimea a sovereign state of Russia.

11. Obama tells Moscow America will never accept Crimea vote

Crimea's pro-Moscow leader says he will apply to join Russia today, but the United States says it will never accept the overwhelming 'yes' vote in the weekend's referendum.

12. Crimean Exit Polls: 93 Percent in Favor to Break with Ukraine

The high yes vote in Crimea referendum to join Russia.

13. Crimea passes 'declaration of independence'

Erin Baumann UCD School of Politics and International Relations

14. Ukrainian Crisis: Ahead of Sunday's Referendum

Gideon Rose, editor of Foreign Affairs magazine and author of the book How Wars End: Why We Always Fight the Last Battle, discusses the latest on the crisis in Ukraine, particularly on the different votes and decisions about the future of Crimea, and takes your calls on how and why borders should change.

15. Beyond sanctions, Obama has few Russia options

The U.S. can squeeze Russia economically for sending troops into Crimea, but Obama needs Europe's support for sanctions to work. NPR's Rachel Martin speaks with correspondent Mara Liasson.

16. Russian troops continue movements in Crimea

As the standoff continues in Crimea, Russia warns the U.S. against 'hasty' sanctions. Ukraine officials accuse pro-Russian forces of armed aggression.

17. Sochi Paralympics in the shadow of Ukraine

The Winter Paralympic Games will begin in the Russian city of Sochi this Friday, amid the crisis in neighbouring Crimea.

18. Former Ukrainian PM Yulia Tymoshenko contemplates return to power

Seeing orange: She's just days out of prison, but former Ukrainian prime minister Yulia Tymoshenko is already contemplating a return to power -- we hear from her daughter.

19. Is Ukraine on the verge of spinning out of control?

The deadly violence and mayhem gripping Kiev signals an escalation in the more than two months of protests against the pro-Russia Ukrainian government. Steven Pifer of the Brookings Institution and Adrian Karatnycky of the Atlantic Council join Gwen Ifill to discuss the root causes of the unrest, the leverage of the West and the outside forces pushing Ukraine into battle.

20. Ukraine signs EU association agreement: Is the crisis over?

Ukraine's president has hailed a 'historic' trade pact with the European Union, calling it the 'most important day' since independence in 1991. But Russia said the partnership agreement, also signed by two other ex-Soviet states Georgia and Moldova, would have 'serious consequences.' The pact is the issue that triggered Ukraine's current crisis.

21. More Violence in Ukraine: When Does Crisis Become a Saga?

Dr. Andrew Cottey, Senior Lecturer at the Department of Government in UCC, analyses the re-intensification of violence in eastern Ukraine in recent days.

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