What significant change did Portugal implement in the Indian Ocean trade network?

• A. Established exclusive trade treaties with indigenous people
• B. Created a string of armed trading ports
• C. Introduced a new currency for trading
• D. Built naval bases for their fleet

Answer: (B)

Portugal's significant change in the Indian Ocean trade network was the creation of a string of armed trading ports. This strategy marked a pivotal shift in how trade was conducted in the region. By establishing fortified trading posts along vital trade routes, Portugal was able to exert military control and secure safer passage for their merchant vessels. These posts not only facilitated the exchange of goods like spices and textiles but also acted as strategic bases from which Portuguese ships could launch further expeditions and assert dominance over local traders and rivals.

This approach allowed Portugal to effectively monopolize trade in certain commodities and establishes a network that outmaneuvered indigenous trading practices. The presence of armed personnel at these ports served both as protection for Portuguese interests and a means of enforcing trade regulations, ensuring that they could govern and profit from the region's commerce much more effectively than competing nations that did not employ a similar model.

In the context of the other choices, while establishing exclusive trade treaties, introducing a new currency, and building naval bases are relevant to maritime trade, they did not represent the specific and transformative approach that the establishment of armed trading ports did. The armed trading posts initiated a new era of European colonial and commercial activity, setting the stage for further imperial expansions in the centuries to follow.