We had biweekly advisories in highschool, and one time (the day after veteran's day I think) we had to watch a video (created by our JROTC?) where they talked about how America was the greatest country on earth with the most freedom and how great our troops are. And they literally compared not standing for the pledge to spitting on a dead veteran's grave. We did a second pledge of allegiance that day, which the entire class all did.

we had similar nationalist advisories, one of which the teacher literally did the "more female war criminals!" meme by reading an article about "the most badass women of the US army"