Ukraine official : G7 sanctions will be `` coordinated , '' `` not necessarily identical '' Russian fighter jets enter Russian airspace on several occasions . Russia official announces `` second stage '' of operation against militants in the Organization for Security . Ukrainian Prime Minister Arseniy Yatsenyuk accused Russia of aiming to occupy his country `` militarily and politically , '' claiming that Russia wants to start a third world war . President Barack Obama says targeted sanctions against Ukraine are `` ready to go ''
Ukraine official : G7 sanctions will be `` coordinated , '' `` not necessarily identical '' Russian fighter jets enter Russian airspace on several occasions . Russia official announces `` second stage '' of operation against militants in the Organization for Security . President Barack Obama says targeted sanctions against Ukraine are `` ready to go ''