U.S. stocks tumbled on Monday alongside other risky assets globally as Ukraine and Russia prepared for possible war after Russian President Vladimir Putin declared he had the right to invade his neighbor.

• March 3, 2014

British Foreign Secretary William Hague said on Saturday that Russian action was a "potentially grave threat" to Ukraine's sovereignty, independence and territorial integrity.

• March 1, 2014

Russian President Vladimir Putin secured his parliament's authority on Saturday to invade Ukraine after troops seized control of the Crimea peninsula and pro-Moscow demonstrators hoisted flags above government buildings in two eastern cities.

• March 1, 2014

China's central bank delivered two major surprises to investors this week: it engineered a sharp decline in the yuan against the dollar and at the same time relaxed its tight grip on money markets that had kept interest rates firm.

• March 1, 2014

Israel urged the U.N. nuclear watchdog agency on Friday to go public with all information it has regarding suspicions that Iran researched how to build an atomic bomb.

• February 28, 2014

Armed men took control of two airports in the Crimea region on Friday in what Ukraine's government described as an invasion and occupation by Russian forces, raising tension between Moscow and the West.

• February 28, 2014

Russian President Vladimir Putin has ordered his government to continue talks with Ukraine on economic and trade relations and to consult foreign partners including the IMF and the G8 on financial aid, a statement on the Kremlin's website said.

• February 28, 2014

Waving the Russian flag and chanting "Russia! Russia!", protesters in Crimea have become the last major bastion of resistance to Ukraine's new rulers.

• February 27, 2014