Mobilization Squads: Groups of people (minimum two people) who meet as many times as needed in order to discuss issues not concerning organization necessarily, but rather discussing issues such as political demands, planning a march, or restructuring something as needed. The difference between Mobilizing Groups and Working Groups is that MGs come together and disband as needed, whereas Working Groups are permanent groups. MGs can be impromptu at any time, and can run meetings for as long or short as wanted.
The formation of these groups does not have to go through the General Assembly, but if you form one and want to invite others to take part, it may be useful to make an announcement at a General Assembly and have your meetings added to the calendar. These groups may also be formed from passed or tabled proposals and interesting discussions at the GAs.