FPO, AE

ZIP code 09859 is located in Kwajalein, Marshall Islands. This area is home to the Ronald Reagan Ballistic Missile Defense Test Site, a crucial strategic asset for the United States' missile defense program. The zip code also encompasses the Kwajalein Atoll, a stunning tropical island paradise known for its crystal-clear waters and vibrant marine life, making it a popular destination for tourists and researchers alike.