The capture of Grave in September 1602 was a pivotal event during the Eighty Years' War, which saw the Dutch Republic striving for independence from Spanish rule. Under the strategic command of Maurice of Nassau, Prince of Orange, a combined army of Dutch and English troops laid siege to the town that had been a stronghold for the Spanish. The siege tactics employed included bombarding the walls, cutting off supplies, and conducting a systematic approach to undermine the garrison's morale. Grave's strategic location made it vital for controlling trade routes and military movements in the Dutch Republic’s struggle against Spain.

Maurice of Orange was instrumental in modernizing military tactics, blending traditional siege warfare with more systematic approaches to encircle and incapacitate enemies. The siege lasted several weeks and culminated in the surrender of the town on September 20, when the Spanish commander recognized the untenable situation. This capitulation not only shifted the balance of power in the region but also provided a morale boost for the Dutch, demonstrating the efficacy of their coalition with the English.

The successful siege of Grave highlighted the capabilities of a well-coordinated multinational military effort during a period characterized by fragmented loyalties and warfare. The Dutch victory was celebrated and served as an example of liberation from Spanish rule, inspiring other towns in the region to consider their positions amidst the ongoing conflict. The event further solidified Maurice's reputation as a capable military leader and played a crucial role in the overall war strategy of the Dutch Republic.