The Kataeb (brigades) were increasingly at the forefront of internal security. Each Katiba (individual brigade) had a name bearing a measure of political significance, such as the name of its commander. For example, the 32nd Reinforced Brigade was known as the Khamis Brigade was named after one of Colonel Qadhafi’s sons. Individual Katiba were said to number up to 3,000 men and were armed with heavy weaponry. Membership in the Qadhafi brigades was based on loyalty and family or tribal ties, with a division of personnel instituted so as to ensure loyalty by means of implicit threats to members of the family or tribe of any person who may be suspected of disloyalty. In general, it is difficult to ascertain, how and why a given Katiba was organized and dissolved and under whose command it was at any given time.