Arunachal Pradesh or South Tibet is a state between India and China. The country that owns this region is disputed. China says that they own it and call it South Tibet (Zangnan 藏南). In 2017, China started renaming places in this territory. In 2019 China destroyed 30,000 "incorrect" world maps that showed South Tibet as part of India.
The territory's northern boundary is about 550 miles long. It is known as the McMahon Line.
In 1962, the Sino-Indian War was fought here. The war was short and ended in India's defeat. However, China withdrew back to the modern borders voluntarily. They still say that they own the region.