On 13 October 1985, AN F15 fired a 2700 lb 18 foot missile and shot down an obsolete satellite that was 2000 miles away in space!
Probably for the better same thing with the old school boomer subs. Low tech and offline means that the Chinese can’t hack it. Once you got hightech all that ish is at risk.the software to remove Nuclear armaments from the B-1b bomber (and other aircraft) fit on a single 3.5" magnetic floppy disc.
<== I was part of the crew to convert the B-1b software from Nuke to conventional after the ratification of the Start treaty under President Bill Clinton.
More info, the code for Nuclear armament for the B-1b bombers (and all other Nuke planes of the USAF) was backed up...