United Nations

United Nations refers to multiple organizations in the Ace Combat franchise:
 * Neo United Nations, a multinational Strangereal organization depicted in Ace Combat 3: Electrosphere
 * IUN, a multinational Strangereal organization sometimes referred to as the United Nations, depicted primarily in Ace Combat 7: Skies Unknown
 * United Nations (Infinity), the multinational organization in our real world depicted in Ace Combat Infinity