two aids, dan fiver and dan rhodes. and senators. all of them brushing off the tit for tat. the president ruled out using military force, downplaying the likelihood that the u.s. will provide assistance to the country. he is sending a warning. any moves by russia threatening the countries is a different story. >> we have increased our support for the eastern europe een allies, and we'll continue to. >> diplomacy can work, but russia has to stop at crimea. >> well, diplomatic pressure on russia grows. the european council imposed travel bans on 12 more people, and frozen their assets. the president of the european council warns more measures may follow. >> we are also cancelling the next e.u. russia sim it and member states -- um it and member states and bilateral summits. we make clear that failure to settle the the crisis peacefully and steps by russia to destabilize ukraine will have far-reaching consequences. and by that we mean consequences on relations in a broad range of economic areas. >> ban ki-moon is travelling to kiev on friday in an attempt to set up talks betwee