Cameron and Obama agree on consolidated pressure on Russia

REUTERS

The U.S. and UK leaders said they also intended to help Ukraine strengthen its economy and democracy. 

They said they "will continue to take consolidated actions to counter Russian aggression in Ukraine."

" If we allow such fundamental breaches of international law to go unchecked, we will all suffer from the instability that would follow. Our strong and united response has sent an unmistakable message that the international community will not stand by as Russia attempts to destabilize Ukraine," Obama and Cameron wrote. 

The article was published shortly before the visit of UK Prime Minister Cameron to the United States, during which he will also discuss with Obama the issue of cyber security.