Russia's military buildup along its border with Ukraine is not yet setting off any alarms in Washington.
The United States' highest-ranking military officer Wednesday said the U.S. was aware of Moscow's military movement, describing it as "significant" but also as "nothing overtly aggressive."
"We've seen this before," General Mark Milley, the chairman of the Joint Chiefs of Staff, told a security forum in Washington, noting Russia's annual Zapad exercises often involve tens of thousands of troops.
