Who is your branch "Hero"?

CPT Harry Truman an Artillery Officer in France in WWI - there's a wonderful story I found on his actions in France with the Horse drawn artillery - things like double teaming the guns to get them through the mud. When he became Vice-President he retired as a Res COL. When he left the White House, his only pension was his military pension (there was no Pres. retirement then)

And an ancestor of mine Ernst Gottlieb Keller, a German immigrant and a Union Cavalryman, he came to this country after the '48.

I have two. First is 1LT Alonzo Cushing who continued to fight his battery during "Pickett's Charge" even to the extent of serving the piece with his "chief of smoke" while holding his own guts in his hand before he finally died, very close to General Armistead who got over the stone wall and into the Union lines. Chushing's A Battery is still known as "Cushing's Battery."
The second is Major John Pelham who began his artillery career as General Stonewall Jackson's chief of artillery as a captain. He was considered to be - and history bares him out - as the best artilleryman in the CSA. Unfortunately, he died joining an actual mounted cavalry charge. Almost everywhere American artillery is sent, you will find a Camp Pelham.

I don't think I could fairly name just one, but here is my list. Col. Joshua Chamberlain (Gettysburg), William T Sherman, George Patton, Dick Winters, Audie Murphy, Bob Howard, Daniel Morgan (Revolutionary War), and I would even throw in Teddy Roosevelt. And for having the largest testicles, I think that would need to go to George Rogers Clark, who took the Illinois Territory from the British with 150 hillbillies.

Aldrie Murphy

This man wasn't in the military, but he had the honor of getting to be it's Commander in Chief. President Reagan loved the military, and every time I need some motivation I just listen to the speech in this YouTube video.
https://youtu.be/EuQ-3wxPCtM

FA MOLLY PICTURE

Mine is, without a doubt, Tibor Rubin. He was a Hungarian holocaust survivor who came to the US, joined the Army and served in Korea. Among other heroic actions, he single-handedly held a hill from capture by a North Korean regiment for over 24 hours until relief came. He was later captured and put in a NK POW camp. Since he was still a Hungarian citizen, and Hungary was under control of the USSR, he was offered repatriation to Hungary, but refused it, staying with his fellow soldiers. Almost every night, he escaped from the POW camp, stole supplies from the NK buildings and returned to the camp to share what he'd found. See, https://www.nytimes.com/2015/12/09/us/tibor-rubin-is-dead-at-86-award-of-medal-of-honor-was-delayed-by-anti-semitism.html

BG Macauliffe, 101st DIVARTY CDR Bastogne

I figured at least one person, a Marine at least, would mention Daniel Daly.

Here is 10 of them. http://ahoy.tk-jk.net/macslog/TopTenUSNavySubmarineCapt.html