Original sentence: The Nathu La and Cho La clashes, sometimes referred to as the Sino-Indian War of 1967, consisted of a series of border clashes between India and China alongside the border of the Himalayan kingdom of Sikkim, then an Indian protectorate
Edited sentence: The Nathu La and Cho La clashes, also referred to as the Sino-Indian War of 1967, consisted of a series of border clashes between India and China alongside the border of the Himalayan kingdom of Sikkim, then an Indian protectorate