Don’t kid yourself. The N. Korean military is not Saddam’s military and would not be a pushover.
From Wikipedia.
The Korean People’s Army operates a very large amount of equipment, including 4,100 tanks, 2,100 APCs, 8,500 field artillery pieces, 5,100 multiple rocket launchers,[41] 11,000 air defense guns and some 10,000 MANPADS and anti-tank guided missiles[55] in the Ground force; about 500 vessels in the Navy[41] and 730 combat aircraft in the Air Force,[41] of which 478 are fighters and 180 are bombers.[56] North Korea also has the largest special forces in the world, as well as the largest submarine fleet.[57] The equipment is a mixture of World War II vintage vehicles and small arms, widely proliferated Cold War technology, and more modern Soviet or locally produced weapons.
North Korea possesses a massive array of long range artillery hidden just north of the Korean Demilitarized Zone. It has been stated that a preemptive strike on Seoul using their massive array of artillery along the Demilitarized Zone would mean that “millions would die in a sea of fire.” However, in a recent study done by the Nautilus Institute, it might not be as devastating as told if North Korea were aiming for an strategic attack on Seoul it is estimated that they could kill 64,000 people in the first day of a potential conflict.[58]
Do you think that ROK and US Army artillery units are going to just sit there and let the KPA fire on Seoul without responding? When I was there we “joked” that we were there to keep the South from going North.
But you will see massive loss of life in South Korea. We should have finished this long ago.