Johor Coast

The Johor coast guarded approaches to the river settlements of a Malay kingdom that emerged after the Portuguese capture of Melaka in 1511. Its rulers established successive centres along the Johor River, linking the shore to courts farther upstream. Portuguese and Acehnese attacks made these places difficult to hold permanently.

In 1587 a Portuguese expedition destroyed Johor Lama. Sultan Ali Jalla Abdul Jalil withdrew and established a new administrative centre at Batu Sawar. Moving the court upriver preserved a political presence after the loss of the older fort, while river access continued to connect it with the coast. Johor later helped the Dutch East India Company defeat Portuguese Melaka in 1641. These changing alliances and repeated attacks made the coastal approaches a setting for both diplomacy and warfare. Control depended on the relationship between fleets at sea, defended river settlements and rulers able to relocate their headquarters.