The phrase "assumption of command" is correct and usable in written English.
It can be used in contexts related to military or organizational leadership, indicating the act of taking control or leadership of a situation or group.
Example: "The officer's assumption of command was marked by a formal ceremony attended by all personnel."
Alternatives: "taking command" or "assuming leadership".
Send Blamey up there and let him fall with it!" Blamey felt he had no choice, but his assumption of command of New Guinea Force sat uneasily with Rowell, the commander of I Corps there, who saw it as displaying a lack of confidence in him.
"My assumption of command represents a change in personnel, not a change in policy or strategy," General Petraeus said.
The two soldiers appeared in a North Korean state television program broadcast Thursday to commemorate the 18th anniversary of Kim Jong-il's assumption of command of the country's army, Yonhap reported.
Once appointed, Lee was not given an hour in which to organize his staff or to add to such understanding of the situation as he had been able to get from a brief study of the tangled records of the adjutant general's office during the interval between his arrival in Richmond and his assumption of command on March 14.23 Every mail told of some added menace to Southern arms.
Following Arnold's assumption of command at Montreal, Hazen's regiment was assigned to garrison duty at Fort Chambly.
His assumption of command, as well as the issue of new Enfield rifled muskets, improved the morale of the regiment.
The assumption of the command and control model should be understood, according to Dynes (1994), in terms of the 3Cs.
The assumption was that the chain of command ran from Simeone to Vercellone to Gabi to Burgos (or from Gabi directly to the players) and the images seem to bear that out.
There is an assumption that sexual assault has to be taken out of the chain of command because that is where you find senior men in positions of authority over subordinate women, and always will.
end{aligned}Here (j>1) by our assumption that command number 1 cannot be used in the middle of a computation consisting of old commands.
This particular view reflected the deeplying assumption that the command of the Fourth Amendment implies continuous supervision by the judiciary over law enforcement officers, quite different from the passive role which courts play in some spheres.
