China National Highway 219 (G219; Chinese: Guódào219) is a highway which runs along the entire western and southern border of the People's Republic of China, from Kom-Kanas Mongolian ethnic township in Xinjiang to Dongxing in Guangxi. At over long, it is part of the China National Highway Network Planning (2013–2030), and once completed it will be the longest National Highway. Before 2013, G219 ran from Yecheng (Karghilik) in the Xinjiang Uyghur Autonomous Region to Lhatse in the Tibet Autonomous Region. It was long. This section was completed in September 1957. India disagrees with China over its territorial footprint in Aksai Chin. During the 1962 war, China defended the road, also pushing its western frontier further west. For the first time after the 1960s, between 2010-2012, China spent ($476 million) repaving the Xinjiang section spanning just over . China's 13th (2016–2020) and 14th (2021–2025) five-year plans both included development of the road and connectivity with other roads. Former G219 Construction of this road as a gravel road was started in 1951. It is also known as the 'Yehchang–Gartok road', the 'Aksai Chin road', and the 'Sky Road'. About passes through Aksai Chin. Xinjiang-Tibet road, Aksai Chin Through 1950s China planned and constructed a road through its western frontier in Xinjiang and Tibet (Hotan/Rutog). China announced completion of the road in September 1957. A number of reasons for building the road has been conceptualized, including cementing China's control over the region. India supposedly learnt of the construction a couple of years after the road construction started. Despite the historic remoteness of the region, both sides lay claim to the area. The road entered disputed territory "just east of Sarigh Jilgnang" after which it ran through a number of locations India recognized as its territory such as Haji Langar, and usage was claimed by India to be in contravention to the Sino-Indian Agreement 1954. The following years saw China repave the road which resulted in localized tension. One of the reasons for the 1962 war was the defence of that road. In the defence of the road, China pushed its western frontier further west. Dispute over the territory persists to the present time. There is a Chinese war memorial on the G219 at Kangxiwar. A number of lateral roads have been constructed with scattered military infrastructure. Road development Repaving of the road began in late 2010. By July 2012 and with an expenditure