U.S. says Putin has enough forces massed to invade Ukraine

“If Russia chooses to invade Ukraine, it will not be cost-free, in terms of casualties and other significant effects,” Milley said. He was referring to Russian costs, while also noting that Ukraine’s armed forces are more capable today than in 2014 when Russia seized Ukraine’s Crimean Peninsula and intervened in support of pro-Russian separatists in the eastern industrial heartland.