Final answer:
During the 15th through 18th centuries, European countries engaged in colonization and conquests of other island nations, mainly for lucrative trade routes. Spain colonized parts of the Americas, while Britain established colonies in Africa, India, and parts of Asia.
Step-by-step explanation:
During the 15th through 18th centuries, European countries engaged in colonization and conquests of other island nations across the globe. The motives for these conquests were mainly the establishment of lucrative trade routes. European powers such as Great Britain and Spain dominated these trade routes and came to dominate entire countries. For example, Spain colonized parts of the Americas, while Britain established colonies in Africa, India, and parts of Asia.