Demchok sector in the context of "Kingdom of Ladakh"

The Line of Actual Control (LAC), in the context of the Sino-Indian border dispute, is a notional demarcation linethat separates Indian-controlled territory from Chinese-controlled territory on their mutual border. The concept was introduced by Chinese premier Zhou Enlai in a 1959 letter to Jawaharlal Nehru as the "line up to which each side exercises actual control", but rejected by Nehru as being incoherent. Subsequently, the term came to refer to the line formed after the 1962 Sino-Indian War.

The LAC is different from the borders claimed by each country in the Sino-Indian border dispute. The Indian claims include the entire Aksai Chin region and the Chinese claims include Arunachal Pradesh/Zangnan. These claims are not included in the concept of "actual control".

The Kashmir conflict is a territorial conflict over the Kashmir region, primarily between India and Pakistan, and also between China and India in the northeastern portion of the region. The conflict started after the partition of India in 1947 as both India and Pakistan claimed the entirety of the former princely state of Jammu and Kashmir. It is a dispute over the region that escalated into three wars between India and Pakistan and several other armed skirmishes. India controls approximately 55% of the land area of the region that includes Jammu, the Kashmir Valley, most of Ladakh, the Siachen Glacier, and 70% of its population; Pakistan controls approximately 30% of the land area that includes Azad Kashmir and Gilgit-Baltistan; and China controls the remaining 15% of the land area that includes the Aksai Chin region, the mostly uninhabited Trans-Karakoram Tract, and part of the Demchok sector.

After the partition of India and a rebellion in the western districts of the state, Pakistani tribal militias invaded Kashmir, leading the Hindu ruler of Jammu and Kashmir to join India. The resulting Indo-Pakistani War ended with a UN-mediated ceasefire along a line that was eventually named the Line of Control. In 1962, China invaded and fought a war with India along the disputed Indo-Chinese border, including in Indian administered-Ladakh, marking their entry to the Kashmir conflict. In 1965, Pakistan attempted to infiltrate Indian-administered Kashmir to precipitate an insurgency there, resulting in another war fought by the two countries over the region. After further fighting during the war of 1971, the Simla Agreement formally established the Line of Control between the territories under Indian and Pakistani control. In 1999, an armed conflict between the two countries broke out again in Kargil with no effect on the status quo.