The Korean war is still on - the last serious battle was 1953, but the two sides just decided it wasn’t worth fighting but never agreed to end it. It probably isn’t hard to find treaties and laws dating to back then that give the US military permission to attack without asking congress. (the us never declared war though, so it would need a very detailed lawyer and months to go through all the laws to figure out the exact status)
The Korean war is still on - the last serious battle was 1953, but the two sides just decided it wasn’t worth fighting but never agreed to end it. It probably isn’t hard to find treaties and laws dating to back then that give the US military permission to attack without asking congress. (the us never declared war though, so it would need a very detailed lawyer and months to go through all the laws to figure out the exact status)