Organization of the Dutch Revolt Army

Timeline

1. 1568–1572Emden · East FrisiaThe 'Sea Beggars' (Geuzen) harassed Spanish shipping from Emden, while Calvinist militias in towns such as Alkmaar armed themselves spontaneously; loose organization by company, mixing local citizens, sailors, and retinues of exiled nobles, with no unified logistics.
2. 1572–1576Leiden · NetherlandsWilliam of Orange combined provincial militias with German and Scottish mercenary companies into a coalition force, establishing stadholder authority and provincial assembly funding; during the 1574 siege of Leiden, engineers, citizen militias, and foreign companies cooperated, forming a 'shallow square + skirmishers + engineers' tactical organization against the Spanish tercio.
3. 1577–1580Delft · Dutch RepublicAfter the 'perpetual edict' collapsed, the rebel regime in Holland and Zeeland consolidated long-service volunteer infantry by company, supplemented by a few cavalry reconnaissance companies; provincial assemblies funded by 'company-battalion', officers nominated by the stadholder, laying the foundation for the Dutch Republic's regular army of the 1580s.