mobilization

Concise Oxford English Dictionary © 2008 Oxford University Press:
mobilize /ˈməʊbəlʌɪz/ (or mobilise)

▶verb

• 1 prepare and organize (troops) for active service.

  ■ organize (people or resources) for a particular task.

• 2 make mobile.

  ■ make transportable by or as a liquid.

– derivatives
mobilizable adjective,
mobilization noun,
mobilizer noun.