sortir du rang

to rise from the ranks, to rise through the ranks (to leave the condition of private and become an officer, to rise from a rank-and-file position to a position of command); to break ranks (to march or charge out of the designated order in a military unit); to break ranks (to publicly disagree with one's own group or organization); to step out of line

“Near-synonyms: monter en grade, prendre du galon, gagner ses éperons”