Dawn Hall

explain all the parts of the Marines Hyme first person to do this gets the points?

From the halls of Montezuma
To the shores of Tripoli,
We fight our country's battles
In the air, on land, and sea.
First to fight for right and freedom,
And to keep our honor clean,
We are proud to claim the title
Of United States Marines.

Our flag's unfurl'd to every breeze
From dawn to setting sun;
We have fought in every clime and place
Where we could take a gun.
In the snow of far-off northern lands
And in sunny tropic scenes,
You will find us always on the job -
The United States Marines.

Here's health to you and to our Corps
Which we are proud to serve;
In many a strife we've fought for life
And never lost our nerve.
If the Army and the Navy
Ever look on Heaven's scenes,
They will find the streets are guarded
By United States Marines.

Well let's see The Montezuma phrase refers to the Battle of Chapultepec. The Tripoli phrase refers to actions during the First Barbary War and the Battle of Derna.
In the air, on land, and sea. refers to the Amphibious nature of the Corps as well as the fact that they fly. The in the air part was added in 1942.
Our Flag's unfurled to every breeze from dawn to setting sun refers to the global reach of the Marine Corps
Mush of the rest is quite self explanatory. It is of note that at the U.S. Naval Academy the line "If the Army and the Navy" is sung "If the Army and the Air Force" because the Navy would simply expect the Marines to be doing their job.