Cacheu Fort, located in Cacheu, Guinea-Bissau, is a historical structure dating back to the 16th century. Built by the Portuguese, it served as a military fortress and a key trading post in the region, particularly for the trans-Atlantic slave trade. The fort's strategic location on the Cacheu River allowed for control over maritime activities and facilitated the movement of goods and enslaved people. Today, Cacheu Fort stands as an important cultural and historical site, offering insights into the colonial and trade history of Guinea-Bissau.