Honolulu is an unincorporated part of and the county seat of the City and County of Honolulu on the island of Oahu. It is the most populous city in and the state capital of the U.S. state of Hawaii. Honolulu is the main gateway to Hawaii and a major portal into the United States. The city is also a major hub for international business, military defense, as well as famously being host to a diverse variety of east-west and Pacific culture, cuisine, and traditions.
The largest city and airport in the Hawaiian Islands, Honolulu acts as a natural gateway to the islands' large tourism industry, which brings millions of visitors and contributes $10 billion annually to the local economy. Honolulu's location in the Pacific also makes it a large business and trading hub, particularly between the East and the West. Other important aspects of the city's economy include military defense, research and development, and manufacturing.