“AFTER 970 days of war,” said Lloyd Austin, America’s defence secretary, visiting Kyiv on October 21st, “Putin has not achieved one single strategic objective.” In public, Mr Austin offered certitude, confidence and clarity: “Moscow will never prevail in Ukraine.” In private, his colleagues in the Pentagon, Western officials and many Ukrainian commanders are increasingly concerned about the direction of the war and Ukraine’s ability to hold back Russian advances over the next six months.