First the war in Ukraine showed us that tanks are obsolete, not. Noe it shows us manned aircraft are obsolete, and I go out on a limb and say those are neither. A javelin doesn't replace a tank, and a dronw doesn't replace attack aircraft and helicopters. What we in the West have tonaccept so, and that is difficult for public that grew up post-Vietnam, is that even our top notch, ultra hightech military hardware can and will be destroyed in a war. And that includes everything from submarines over cruiser to aircraft carriers, from tank over helicopters to fighters and bombers. The only reason we didn't see losses there since Korea / Vietnam is kind of wars the West fought since.