mobilization
noun
[ məʊbɪlʌɪˈzeɪʃ(ə)n ]
• the action of a country or its government preparing and organizing troops for active service.
• "mobilization of the army in 1941 brought 2,500,000 men under arms"
• the action of making something movable or capable of movement.
• "mobilization of the shoulder can be resumed within 10 days following injury"