Correct! One is their international airport, the other is Andersen Air Base.
Another question to those with knowledge of these things....
Most airports have two runways, approximately 90 degrees rotated from each other, and these don’t. Is this because the prevailing winds are always in one direction?
Correction
One is Anderson, on the tip, the other is NAVAL AIR STATION Agana, which is SHARED with the international airport.
The naval base and the naval magazine are along the coast.
BTW, when I was stationed there in the early ‘70s, the people did NOT like HAOLIES and were extremely unfriendly. Violence was an every day affair.
I was thrilled to leave the place.