Just take a truck full of BBQ and the entire army will lay down their arms. Trust me.
BBQ cat or dog...have to be more specific
It happened during the Korean War at the Battle of Chosin Reservoir when our troops trying to retreat didn't always destroy their food when abandoning broken-down trucks and other items. The Communist soldiers were so hungry that they defied orders, broke off the pursuit, and chowed down.
But let's not forget that the Communists, despite their starvation conditions, bitter cold, and lack of equipment, did succeed in driving the United States military out of North Korea and for a while recaptured Seoul.
Let's also not forget that as bad as things are for the Korean soldier, he's fed relatively well compared to a lot of civilians, and he probably thinks he's getting a decent amount of food. What we could consider starvation rations for Americans are what much of the world had as a normal diet until the modern era, and while it will stunt growth and keep people from peak performance, the human body can and will adapt to conditions.
Underestimating the effects of severe discipline, complete lack of accurate information (i.e., unlike what we faced in Iraq, they enemy soldiers hear no corrosive rumors of how tough America really is), and a culture of complete obedience to authority would be very unwise.
The North Koreans **ARE** quite capable of causing tremendous damage to South Korea, and while we certainly can turn Pyongyang into a sheet of smoky glass, defeating the North Korean Army would not be any sort of cakewalk. Even if our Special Forces decapitate the dictatorship and force a surrender without major fighting, reconstructing a reunified Korean peninsula would make the problems of reunified East Germany look minor.