The document summarizes the history of Pakistan and China's diplomatic relationship from 1950 to present day. It outlines key events such as the establishment of diplomatic relations in 1951 and China's support for Pakistan during its wars with India. It also discusses major cooperative economic projects between the two countries like the Karakoram Highway and China's investments in Pakistan's infrastructure and energy sector through the China-Pakistan Economic Corridor initiative. The relationship has strengthened over time based on strategic interests and mutual economic and military support.