Now—take your post.
Where you have written President Trump replace it with LBJ.
Where you have written Iran replace it with Vietnam.
We have been here before.
Times have changed. We are now in a time of instantaneous electronic operations and feedback. There may be echoes of past wars; but there will never be another like Vietnam. Take the casualty rate for one example. The Afghanistan/Iraq casualty rate was 5% of Vietnam’s, because of advances in war tech and field medicine, and that was decade(s) ago already. The new tech accompanying this present conflict is space-age in comparison with all past conflicts.
Stay strong. There will never be perfection on earth by anyone for anything. But we can advance, and we have been doing so.