KIEV, Aug. 8 ??“ With the U.S. and the European Union scrambling for a response Monday after Iran restarted work at its nuclear facility, the nature of that response itself could have a major impact on the outcome of Ukraine's goal of energy diversification.

The Iranian move, which fueled suspicions the country has been seeking to develop
nuclear weapons, has left Western diplomats warning Teheran that the matter could be taken before the United Nations Security Council, which may wind up imposing economic sanctions.