Gen. Mark Milley on seeing through the fog of war in Ukraine

No other American has been more deeply involved in the war in Ukraine than General Mark Milley, chairman of the Joint Chiefs of Staff. At 6:45 in the morning, he was about to have a call with Gen. Valery Zaluzhny, commander of Ukraine's armed forces. "I talk to him every week, sometimes twice a week, three times a week," Milley said.

Three hours later, he took "Sunday Morning" underground, deep in the bowels of the Pentagon, into a top-secret command center where all the intelligence collected from the battlefields of Ukraine is monitored by his staff, who inform him on a day-to-day basis what's happening in the current operations. Milley said, "The fog and friction of war is always present, but our information systems are pretty good."

Since the war began, this center has kept a 24/7 watch on Russia's catastrophic invasion – indiscriminate strikes against cities, and the leveling of entire villages without letup. According to the latest casualty estimates, Ukraine has lost 200,000 soldiers killed or wounded, and Russia a staggering 300,000.