The Defence Ministries of Ukraine and Russia have agreed a truce in Crimea until March 21, acting Ukrainian Defence Minister Ihor Teniukh told journalists.
According to Reuters, Mr Teniukh said that Russian forces will not take any action against the country's military facilities in Crimea during this period.
He said: "No measures will be taken against our military facilities in Crimea during that time. Our military sites are therefore proceeding with a replenishment of reserves."
Putin's decree recognising Crimea as a 'sovereign country' has triggered the toughest sanctions against Russia since the Cold War.
With over half of the votes counted, over 95% of people in Crimea have voted to become part of Russia, election officials have said.
At some point the West's warnings will have to become deeds, part of the problem is they don't know which Putin they're dealing with.