Answer:
-He saw them as good possible slaves
-Spain had more warpower than native american tribes
Explanation:
Colombus never knew he was in America, he thought he had landed in Asia and believed native Americans to be Asian people. In those times it was fairly common for an empire to "conquer" other lands and subjugate them in order to obtain some source of resource, even slaves. So when Colombus stated in his diaries that these people would make great slaves, it was because he was representing the crown, and that was a common practice at the time, it was usually a comparison of battle power, Colombus was implying that they could be subjugated easily.
