Should a 2LT salute a 1LT?

Yes, you salute the rank no matter what your rank is. If you are working together I don't think it needed every time you see each other.

I believe you have said it all when you quote the regs on saluting. I know that ANY cadet in ANY military school, including West Point< would NEVER fail to render the proper courtesy. Shouldn't ALL officers strive to hold themselves to the same high standards? Better yet. Why does it always seem to be that questions of protocol and courtesy are seldom if ever asked by Marines? Why do we hold our selves to those higher standards of honor and courtesy? Why do other branches seem to have such problems with such simple things? If the regs clearly state something then there should be no problem. Shouldn't it be that simple? Just saying.

The very term "salute" means "greeting". Hence the word salutation. While it is indeed a time honored recognition between warriors, as so well explained in the movie Last Castle, it is also a time honored courtesy. It is not only a sign of recognition, is is a mark of respect. As such, not rendering a proper salute can also be construed as a mark of disrespect. In the Corps we are taught to not only salute, but to also render an appropriate verbal greeting as well. Something such as "good morning sir" or something similar. We are also taught to request permission to pass an officer from the rear by asking "by your leave sir" (and saluting as well) when we are coming abreast of the officer and are passing, him or her, by. Not for nothing, I find it odd that questions of this type always seem to come from personnel other than Marines. Weird huh?

This custom is not a subservient duty. This custom is an exchange honor between those in the profession of arms. The question is wrong-headed. Look for opportunities to exchange salutes. Do it joyfully!

How do I feel? Regulations dammit. You never see Marines asking dumbs$$t questions like this.

Salute the young officer. One day, they will remember when not so young...

I used to Left Hand Salute Butter Bars just to see if they were paying Attention. I was Enlisted & an E-5. Most of the time they weren't, but that said, Yes is my Answer because it would be like a Colonel Saluting a General, or a Major, Saluting a Colonel. It's command, & Respect for the rank

If you do not want to get chewed out by some wannabe best salute seniors. The salute is about respect that sometimes is demanded and not earned. Different cultures do it different. Assigned to NATO (German AF) discovered they were very laid back. Anybody remember 1000 hrs beer/brochen break. Big change when I had to go over to a different kaserne. I could not open a door by myself. Every gerfieter(private) knew I was a senior American NCO and I could not do anything without some private jumping out of bushes to do it for me.

Stupid question.
Junior salute senior officers.
It’s been to many years but don’t you only salute the forst time you see them.
I never had a problem saluting.
Not even boot Ensigns.
It’s not like your ruining your entire day by doing it.

Almost the entire armed forces have this backwards... It's a lot like having good manners in general.

Who benefits from you saluting? That LT or General? Nah. All they gain is the obligation to salute back. The real benefit of it goes directly to you yourself. Your own personal "stock value" increases every single time you do the right thing. That LT sees you as being slightly more valuable as a Soldier and a person. The NCO that saw you do it sees you as being a better Soldier and person. The status of how valuable you are as a person goes up in the perception of everyone around you. Happens when you salute, happens when you say please, happens when you say thank you...

Should a 2LT salute a 1LT? Depends... Doesn't depend on wether or not the 1LT "deserves" a salute, it depends on wether or not the 2LT is worthy of giving it :)