Russias gradual takeover of crimea
Russia hit with more sanctions despite Ukraine ceasefire
The U.S. & EU have imposed new sanctions against Russia, tightening financial measures against Moscow.
The Ukrainian president has ordered a seven-day ceasefire in the fight against pro-Russian separatists.
East Ukraine rebels declared victory in a weekend referendum on self-rule.
Protesters seized the regional administrative building in Ukraine’s second largest city.
The Ukrainian government denounced the visit as a violation of the rules of diplomacy.
The military build-up is adding to concerns that Russia may again be readying an incursion into Ukraine.
Kiev will in return have to pass tough economic reforms to unlock $14-18 billion in standby credit.
The US and EU agreed to work together to prepare possible tougher economic sanctions.
Obama is concerned at the possibility of further Russian encroachment into Ukraine.
Earlier on Monday, Russian troops forced their way into a Ukrainian marine base.
Ukraine told remaining troops to leave Crimea after Russian forces overran one of Kiev’s last bases.
Barack Obama will seek support for his firm line at a meeting with other leaders of the G7.
The Russians used stun grenades and fired automatic weapons as they charged in to seize the base.
A top military commander says Russian forces pose a threat to the separatist Transdniestria region.
Ukrainian forces also abandoned a naval base after attacks by pro-Russian protesters.
President Vladimir Putin signed laws completing Russia's annexation of Crimea on Friday.
The EU & Ukraine have committed to the same deal Viktor Yanukovich rejected last year.
Barack Obama raised the stakes in an East-West confrontation over Crimea.
US and EU imposed personal sanctions on Russian and Crimean officials involved in the seizure of Crimea.