I suppose it could if someone in the North got frisky again. Perhaps during the Vietnam war?
there were several times in the late 80's/early 90s that friction between NK and the US was pretty high, mainly over NK making nuclear weapons and keeping anyone from inspecting them. Time magazine once ran an article comparing the military strength of the two sides, with the idea that war was a distinct possibility...
From 1992-1994, the probability of war in Korea seemed high. If North Korea is going to attack the south, this is probably their last, best chance.
As I recall the North did launch some raids and probe defences a few times during the Vietnam War, but since the South's defenses always seemed fairly solid it never went beyond that. I suppose if the North gets lucky with one of their raids they might take it as a sign that the South is weak and ready to fall and try an all-out invasion.
The "best" chance for the North would have been 1977-80. Before then, the U.S. had most of it's combat strength in the Pacific, especially airpower. In the '77-80 period U.S. military was still pretty much in a post-Viet Nam fog, most of the gear was at the end of useful life, and the President wasn't exactly a warhawk.
Umm, Carter doctrine doesn't ring bell, for example, or Carter's arming policy? AFAIK, Reagan basically started just one working major weapons program, B-2, but decided to go on with a number of not very well working ones, such as B-1... Realistically, even US military strength in 1970's was lightyears ahead of what would have been needed not only to defend South Korea, but also to invade North Korea. And then we have not dealt with South Korean military strength yet, which by then was the backbone for the defense of South Korea.