Common Military Ranks

Military Ranks (Bottom is Lowest, Top is Highest)

Navy

12. Admiral of the Fleet
11. Admiral
10. Vice Admiral
9. Rear Admiral
8. Commodore
7. Captain
6. Commander
5. Lieutenant Commander
4. Lieutenant
3. Sub-lieutenant
2. Ensign
1. Midshipman

Army

12. General of the Army or Field Marshal
11. General
10. Lieutenant General
9. Major General
8. Brigadier or Brigadier General
7. Colonel
6. Lieutenant Colonel
5. Major or Commandant
4. Captain
3. Lieutenant or First Lieutenant
2. Second Lieutenant
1. Officer Cadet

Air Force

12. Marshal of the Air Force
11. Air Chief Marshal
10. Air Marshal
9. Air Vice-Marshal
8. Air Commodore
7. Group Captain
6. Wing Commander
5. Squadron Leader
4. Flight Lieutenant
3. Flying Officer
2. Pilot Officer
1. Flight Cadet

Note: If this was integrated somehow into the American Military, the Secretary of Defense would most likely be above all three of the highest positions, while being below the Vice President, and the President himself being above the Vice President, also known as the Commander-in-Chief, in which he/she exercises full supreme control and command over the entire Unites States Armed Forces.