U.S. warships equipped with cruise missiles will be stationed in the Black Sea region , close to Ukraine . Similarly, as the Pentagon spokesman , Rear Admiral John Kriby to reporters and reported by AFP on Wednesday ( 21/05/2014 ) .
Kirby also stated , there are no signs of withdrawal of Russian troops near the border with Ukraine . Although the Ukrainian authorities had reported no longer see any military activity on the border .
" They ( the Russians - red) is still there , tens of thousands of them , " said Kirby told reporters .
" We have not seen any activity withdrawal ( the Russians ) , " he added .
The U.S. and its allies have repeatedly warned Russia not to interfere with the stability of Ukraine . If proven Russian intervention , then the U.S. will back new sanctions against Russia , which would worsen the economic sector of the country.
During his visit to Romania , U.S. Vice President Joe Biden push Western countries to be more assertive against Russia , if it returned to interfere territory of Ukraine . " It should remain firmly in implementing large impact for Russia , " he said .
Since mid- April, Russia is putting about 40 thousand troops near the Ukrainian border , which he called central training. On Tuesday ( 20/5 ) yesterday , Russia announced that the troops on the border has completed training and will be withdrawn to their respective bases .
Today, the Ukrainian border guard officers expressed do not see any activity of Russian troops as far as 10 kilometers from the border region. But Western countries , including the U.S. , insisting there is no strong evidence about the recall.