CHARGE!!!!

So you take pains to sneak your army into the country in the middle of the night so that you can silently creep up on your unsuspecting quarry and surprise them in their sleep. But then, just as you are about to launch your attack, some idiot stands up and screams ‘CHARGE!!!!!’ at the top of his lungs.
And of course that idiot just happens to be Tunk.

But never mind that, what is up with Moo having no guards along the border with Lem? Recall that just after the snowmonster mishap, King Guz was yelling at the fleeing Tunk that their tentative truce was off. You would think that Guz would have taken himself seriously and prepared for a possible confrontation with the aggressive Lemmians. But here they all are snoozing away without so much as a nightwatchman posted anywhere to sound an alarm.
If that is truly the way it is, then King Guz is clearly at fault here. He is the one responsible for keeping the Moovian border’s secure and the people safe and he has clearly fallen down on the job. Maybe we will find Guz over at some school reading a copy of “My Pet Goat” to a group of Moovian children as the Lemmian invasion commences.