Perhaps our threats have been magnified recently, but our country has had threats not just for the past few decades. Threats have existed to the liberties of the US since before it was the US. I'm not a history or politically science teacher, so I'll leave the lessons for others. But I do have to question the education of anyone who fails to recognize the people of our world, and human nature, for what they are - religiously-fueled, self righteous, greedy, and often violent. Our government did not create human nature, though maybe we have poked a few hornets' nests, and at times given in to our own self-righteousness and greedy tendencies.
The mistakes you made in your earlier posts have been in not acknowledging the necessity of a military force in this world regardless of our foreign policies, and the thank you we all owe those you risk so much to protect us.