He linked up with Anglo colonists in Northern California controlled by the U.S. Army .
In the Pacific , the U.S. Navy sent John D. Sloat to occupy California and claim it for the U.S. because of concerns that Britain might also attempt to occupy the area .
John D. Sloat linked up with Anglo colonists in California   controlled by the U.S. Army .
In the Pacific , the U.S. Navy sent John D. Sloat to occupy California and claim it for the U.S. because of concerns that Britain might also attempt to occupy the area .