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President Obama rebuts Russia's claims that intervening in Ukraine was necessary to protect ethnic Russians or justified by precedents set by Western nations in Kosovo and Iraq.
President Obama says what's at stake in the standoff with Russia over Ukraine is a set of international norms that took generations to develop.
President Obama says it would be "unrealistic" to expect Ukraine or Georgia to join NATO any time soon, despite Russian fears to the contrary
President Obama says the U.S. recognizes that some European countries depend on Russian energy exports, saying the crisis with Ukraine and the resultant sanctions point to the need for "diversification" of energy sources.
President Obama warned the U.S. would use military force if Russian forces attacked any NATO member nation. CBS News chief White House correspondent Major Garrett reports.
Reacting to rhetoric from his 2012 Republican foe Mitt Romney, President Obama argued during a press conference in the Netherlands that while Russia’s actions in Ukraine are “a problem,” he’s “much more concerned when it comes to our security with the prospect of a nuclear weapon going off in Manhattan.”
A new CBS News poll finds just 32 percent think the U.S. has an obligation to intervene over Russian's annexation of Crimea. Clarissa Ward reports.
Russian President Vladimir Putin is hitting back after President Biden called him a killer. The war of words comes as the Biden administration considers new sanctions on the Kremlin. Ed O'Keefe reports.
The United States and its allies have planned a G-7 summit in Brussels in June. Russia is being threatened with more punishments if it seizes additional territory from Ukraine. CBS News chief White House correspondent Major Garrett reports.
After Biden suggests the Russian leader is "a killer," Putin wishes him "good health," but Moscow makes it clear there's no hope for improved relations.
The G-7 nations will now hold their own summit in Brussels in June, excluding Russia from all economic talks until the standoff over Crimea is resolved. World leaders maintain they are ready to impose tougher sanctions on Russia’s arms, finance and energy sectors, should the Ukrainian crisis escalate. Major Garrett reports.
President Obama is in Amsterdam for emergency talks about the crisis in Ukraine. The president is meeting with leaders of the G7 – the world's top global economies – to press for tougher economic sanctions against Russia. Alphonso Van Marsh reports.
Ukraine's Defense Ministry confirmed Russian forces stormed another base -- the last big one to fall. The order has gone out to pull out all remaining Ukrainian forces out of Crimea. CBS News' Charlie D'Agata reports from Donetsk, Ukraine.
Russian military threats to eastern Ukraine will dominate a nuclear security summit in the Netherlands, where an emergency meeting of the G-7 is planned to take place. Major Garrett reports.
David Sanger, Clarissa Ward, and Leigh Gallagher discuss the crisis in Ukraine and why Russia moved so aggressively to consolidate its hold over Crimea.
Sen. Kelly Ayotte, R-N.H., discusses the Russian troop buildup along Ukraine's border and what the U.S. can do to deter further Russian aggression.
Sen. Dick Durbin, D-Ill., discusses the crisis in Ukraine and praises President Obama's record on foreign policy.
Former Massachusetts governor and 2012 Republican presidential nominee Mitt Romney offers his take on the crisis in Ukraine and America's relationship with Russia.
The latest on the search for Malaysia Airlines Flight 370 and the crisis in Ukraine with former Gov. Mitt Romney, R-Mass., Sens. Dick Durbin, D-Ill., and Kelly Ayotte, R-N.H., and others.
Flash Points: CBS News Homeland Security Correspondent Bob Orr talks with CBS News Senior National Security Analyst Juan Zarate about the crisis in Ukraine and how Western leaders hope to stymie Russian President Vladimir Putin.
CBS News State Department correspondent Margaret Brennan spoke with the man who crafted the sanctions against Russia.
The State Department issued a warning urging Americans to defer non-essential travel to Ukraine and to defer all travel to Crimea, Eastern Ukraine, and nearby Russia. CBS News' Mark Albert talks to the "CBS This Morning" co-hosts about Russia's aggression and the tough sanctions being issued by the U.S.
Treasury Undersecretary for Terrorism and Financial Intelligence David Cohen makes the case to CBS News State Department Correspondent Margaret Brennan that sanctions the United States put on Russian leaders for their intervention in Ukraine were effective.
National Security Advisor Susan Rice calls Russia's seizure of the Crimean peninsula a "blatant violation" of Ukraine's sovereignty and international law.
Flash Points: CBS News Homeland Security Correspondent Bob Orr talks with CBS News Senior National Security Analyst Juan Zarate about recent U.S. sanctions against Russia and whether they will have any short-term or long-term impact on the crisis in Ukraine.
