WASHINGTON, Sept 16 - Russia’s setbacks and stretched resources in Ukraine show its forces are incapable of achieving President Vladimir Putin’s initial aims in invading the country as things stand now, the Pentagon’s intelligence chief said Friday.

“We’re coming to a point right now where I think Putin is going to have to revise what his objectives are for this operation,” Lt. Gen. Scott Berrier, director of the Defense Intelligence Agency, told an intelligence and national security conference outside Washington, The Associated Press reported. “Because “it’s pretty clear right now that he’s ... not going to be able to do what he initially intended to do.”