Welcome to Halo Answers. What would you like to know?

The UNSC didn't really "control" planets, the United Earth Government did. But anyways, there were hundreds of human colonies before the Human-Covenant War.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.