Retired Gen. Robert Abrams, an ABC News contributor who served as the commander of United States Forces-Korea, spoke with ABC News Live Monday evening to discuss the fallout of the failed rebellion by the Wagner Group, the ongoing Ukraine counteroffensive and the NATO summit in Lithuania. ABC NEWS: Let's start with that claim that Russian President Vladimir Putin and the head of the Wagner militia forces, Yevgeny Prigozhin, met just days after Prigozhin forces seized a key Russian city. ROBERT ABRAMS: Well, first, I'd be surprised if we actually see proof of life that Putin met wit...