mobilise

verb

1. (transitive)To make something mobile.
2. (transitive)To assemble troops and their equipment in a coordinated fashion so as to be ready for war.
3. (intransitive)To become made ready for war.

   “All Whitby is mobilising against the economy plan, alleging that loss of railway facilities would turn the port into a "ghost town"; [...].”

   “And there were justified fears for the future of the Swanage branch, although enthusiasts were already mobilising themselves to take it over.”