One possible explanation is that the troops are training, but the US defense official said Russia had not announced any exercises in the region.
Ukraine and Russia werein 2014. The United States and its NATO allies do not recognize Russia’s annexation of the peninsula, and the United States provides millions of non-military and military aid to Ukraine each year.
Relations between the two countries have worsened. Just four days ago, four Ukrainian soldiers were killed by Russian separatist bombings in eastern Ukraine.
Russian President Vladimir Putin on Tuesday acknowledged the increase in violence and blamed Ukrainian forces for it.
An official Kremlin reading of a phone call Putin had with French and German leaders said he had “expressed grave concern at the escalation of armed confrontation on the line of contact caused by Ukraine. “.
The U.S. Embassy in Kiev issued a declaration last week, calling on Russia to “observe ceasefire measures” and “end the daily violence that causes senseless suffering” and end its aggression in Ukraine.
On Monday, National Security Advisor Jake Sullivan spoke with the head of Ukraine’s presidential office, Andriy Yermak, and affirmed the United States’ continued support for Euro-Atlantic sovereignty, territorial integrity and aspirations. Ukraine in the face of continued aggression, according to an NSC reading.