mobilization

Short definition from Wiktionary

Noun

1. 1
   The act of mobilizing.
2. 2
   The marshalling and organizing of troops and national resources in preparation for war, bringing them to a state of readiness for an action.
3. 3
   The softening of rock such that geochemical migration can take place.
4. 4
   The transport of a copy of a gene from one chromosome, or one organism to another.