584162ab_ir__44_Online___Days_of_Wonder__Promotion_Conditions
[Code] LTC [US Army] Lieutenant Colonel [Promotion Conditions] 
The promotion from Major to Lieutenant-Colonel is one long slog. Those that make it have proven they can best their peers, regardless of the Theater of Operations in which they were posted!
Officer Ranks - Memoir '44 Online | Days of Wonder
Promotion Conditions