There were many reasons.
For example:
-resources
-strategic locations
-land for the increasing population
-ideology
New Imperialism<span> characterizes a period of colonial expansion by European powers, the United States, and Japan during the late 19th and early 20th centuries. The period featured an unprecedented pursuit of overseas territorial acquisitions. hope that helped</span>
Portugal was a small country with few resources
Just took the test.
Feudalism helps the reducing of a level of inequality in many European nations because it generates a tradition of state paternalism, which set the time for the modern welfare state. Feudalism rises the perfect monarchies. Feudalism helped to stabilize European society.