Here is the quote: It was on a question if the army every fought the marines. "But also as recent as when President Nixon called upon the U.S. Marines to defend him upon Congress calling the U.S. Army to remove him from office. I'm not joking...look it up. Nothing happened, because Nixon took the honorable way out and abdicated so to speak."
Second question, the quote also says that the US Army fought the US Marines during the civil war. Any truth to that?
Thanks
I can answer the second question: Yes and no. When the country split, so did the Marine Corps (as did the Army.) Marines who left the USMC formed the Confederate States Marine Corps (CSMC) but they did not really play a major role. Marines who did not leave of course continued to serve in the USMC for the Union, but it also served no major role besides one not so glorious retreat at Fort Fisher. (We don't like to talk about that.)
So, did the Army fight Marines during the Civil War? Yes. But technically they were no longer the USMC, which did not fight the Army.
May I ask where you found this quote, so I can see it in context?
Well, without context, we can say that Nixon resigned, when there were no congressional proceedings against him yet and he had not been convicted of anything. So congress had no reason to call on the army to do anything.
Despite the President being the commander in chief, equally over the Marines and the Army, and Congress commanding neither, the protection of the President falls to the Secret Service. Your source isn't joking: he's thoroughly BSing. Or hallucinating. You can't look it up -- nothing like this ever happened.
If Nixon had been impeached, he would be expected to pack his gear and leave, like a gentleman.