The First Anglo-Dutch War (called the First Dutch War in England, and the First English War in the Netherlands) was the first of the four Anglo-Dutch Wars. It was fought entirely at sea between the navies of the Commonwealth of England and the United Provinces of the Netherlands. Caused by disputes over trade, the war began with attacks on merchant shipping, but expanded to vast fleet actions. The English navy gained control of the seas around England, and forced the Dutch to accept an English monopoly on trade with English colonies.