... even the relatively slow (3,500 mph) German V-2 rocket presented an impossible challenge to British anti-aircraft guns (LINK: see AAA). I guess we were hoping for a better chance with improved Radar and 'computers'? Later Anti-Missile Missile's relied on small nuclear warheads. ( I would hope that any future need to use what existing ABM systems we have includes the "screw it put an atomic warhead on this" option.)
all images- Right click- open in New Window or Tab = super colossal size!