45 is the soldier's Career Management Field (CMF). Combined with the following letter, you have the Military Occupational Specialty (MOS) - the soldier's career field. 45k used to be the MOS for Armament Repairer - when the Army reclassifed its MOS structure from 2001 - 2004, this MOS became 91K. So, to hold this MOS, they had to be in prior to 2004 or so.
The '2' indicates a skill level - skill level 2 indicates they held the rank of Sergeant.
The 'O' (not a zero) indicates they have no Special Qualification Identifiers or Additional Skill Identifiers. These identify various skill sets which a soldier possesses... for example, if they were Airborne qualified, they would have a 'P' rather than an 'O'.
not good for the army .
not good for the army .
Private is the lowest rank in the Army
It depends which army you mean
If you mean the ground forces, the Canadian Army, if you mean as a whole, the Canadian Forces.
A legatus or legate was a General in the Roman army.
It depends which army you mean
Situation
Army inspection
Privet.
If you mean least capable, that would be the army of Haiti. If you mean with the least operatives or manpower, that would be Costa Rica, which doesn't even have a standing army.
The Union Army was the Northern army during the American Civil War. The Union Army fought and defeated the Confederate States (Southern) Army in 1865.