Reply #214: Of course not

[MADem]

You can apply from within for an ROTC scholarship. You can also do what is termed a direct accession. Join the service, either with a degree, or get one while on active duty, and providing you have not reached your 35th birthday by the time you would have completed OCS, you can take the Officer Aptitude Test and apply that way as well.

You can also go LDO or Warrant, but that demands that you do more time in the enlisted barrel.

If not too old, and assuming you have very good high school grades with an emphasis on math and science, you can apply, outside of the STA paremeters, for admission to a Service Academy--it helps to know a congressman to go this route.

There are many paths to a commission, but the least likely one, to be blunt, is Seaman to Admiral. The numbers are just not there.