Many Missouri volunteers were in this irregular force.
On one level, creation of the Kansas Militia on August 31, 1855, was an ordinary action of a territorial legislature. [Kansas Historical Collection 3:284] The tradition of the citizen militia in America went back to colonial days. In the special circumstances of Kansas Territory, however, with only pro-slavery men appointed as officers (and all the Generals being members of the Bogus Legislature), intimidation of free-staters was clearly intended.
Fifteen legislators served in the Kansas Militia between 1855 and 1857. As in the case of those who formed the Law & Order Party, they were the core group of pro-slavery advocates.
Command Structure of the Kansas Militia August 31, 1855