I've got a few plans on how to deter this invasion: Plan 1- Commit Seppuku: If we can't have this school, then we'll make sure no one else will want it by having students kill & poop themselves, and then smear it over the walls. Put on Japanese war music from WW2 and repeat until everyone is dead. Plan 2: Bombs and Makeshifts- My Science teacher is REALLY into science, and we have a classmate who likes to make weapons, so we'll have them make some bombs to either place around the school or strap to ourselves and suicide. Beat the terrorists at their own game. Said classmate can make multiple melee and short-range projectile weapons, so the ones that are left will use guerrilla tactics to finish off the invasion force. Plan 3- Show 'Em What the South is Known For- Like I said, we have the science teacher and that classmate. My Social Studies teacher has a concealed carry weapon, so she can get it from the school parking lot. The university police station is across the street from the school, so we call them and tell them of the threat, and they become the first line of defense. From there, police and sheriff's officers will be called, making up the second line of defense. Then, we will call a defense branch of the state and federal governments, repeat what was said and provide the original informant's information in voice recording, and reiterate that this is a foreign attack on American soil. Federal and State troops will become the 3rd and 4th lines of defense(more likely reinforcements). Let them come after that, we will be ready. Tl; Dr - suicide and nastiness, bombs and guerrilla tactics, or multiple armed forces from all levels of government