Opinion : Ukraine official : ' sanctions will be ` ` coordinated , '' ` ` not necessarily identical '' Russian fighter jets enter Ukrainian airspace on several occasions . Ukraine official : ` ` second phase '' of operation against militants in Slavyansk . President Barack Obama said targeted sanctions against Russia are ` ` ready to begin ''
Ukraine official : ' sanctions will be ` ` coordinated , '' ` ` not necessarily identical '' Russian fighter jets enter Ukrainian airspace on several occasions . Ukraine official : ` ` second phase '' of operation against militants in Slavyansk . President Barack Obama said targeted sanctions against Russia are ` ` ready to begin ''