Putin okays draft treaty to make Crimea part of Russia
Russian president moves ahead with procedure to make southern Ukrainian region part of Russia.
On the ground, Ukraine, has built a defensive trench complete with concrete barriers along its long border with Russia, its governor said on Monday. The eastern region of Ukraine is dominated by Russian-speakers and has been buffeted by rallies by pro-Russian activists,
Russian President Vladimir Putin says he reserves the right, after the takeover of Crimea, to protect eastern Ukraine's Russian-speaking majority from what Moscow says are right-wing allies of the pro-Western government in Kiev. Ukraine's defence minister says 60,000 Russian troops are massed on the border.