In the period up to the First Anglo-Dutch War, the Dutch Republic had four sources of warships. The first was the ships of five autonomous Admiralties ("colleges"), three in the province of Holland, which were supported by local taxes on commerce and contributions from the inland provinces. Each Admiralty was responsible for the design, construction, armament and manning of its own ships and the appointment of flag officers for its squadron. The second was the so-called "director's ships" ("directieschepen"), convoy escorts provided by the burgomasters and merchants of six cities including Amsterdam and Hoorn to protect their Baltic trades. The cities were responsible for providing what were in effect modified and armed merchant ships, appointing their captains and providing crews. The next group were hybrid ships of the Dutch East India Company, which could act as warships or cargo carriers and the last were hired merchant vessels, whose owners had little interest in risking their property. Although captains of the East India Company were generally competent, they were unused to naval discipline, as were the more variable in quality commanders of director's ships and hired merchant ships.