Luna

The Earth's only natural satellite and the earliest world other than Earth to be both walked by human boots and be settled. Luna is commonly referred to as the moon by Earther's though this is often considered belittling by native Lunans, who believe the term implies an ownership.

Twenty-First Century
Luna's earliest settlers were Americans who arrived n the early 2020s following the terrible shock of the Apophis Event. The first settlement of Armstrong was established in the sea of Tranquillity, in one of the body's many extinct lava tubes. Chinese and Indian bases shortly followed, with the Europeans, Japanese, Russians, Indonesians, Nigerians, and Kenyans, arriving later into the century. During the Sino-American War Luna was largely not involved in the conflict with the local inhabitants deeming war too risky after a Chinese bomb pierced the skin of the European settlement of Copernicus killing 2,000 people. Following the War, and the chaos of the Deluge between 2060 and 2070 the Earthbound powers granted their celestial holdings independence, with exception of Europe and Japan who maintained their control up until 2072 and 2083 respectively.