The cross-strait charters are special flights between Taiwan and mainland China, across the Taiwan Strait. After the Chinese Civil War, no direct flights were allowed between Taiwan and mainland China; this remained the case until 2003. Passengers had to transfer in a third city, such as Hong Kong, to complete their trip.

The term One China may refer, in alphabetical order, to one of the following:The One China policy refers to a United States policy of strategic ambiguity regarding Taiwan. In a 1972 joint communiqué with the PRC, the United States "acknowledges that all Chinese on either side of the Taiwan Strait maintain there is but one China and that Taiwan is a part of China" and "does not challenge that position." It reaffirms the U.S. interest in a peaceful settlement of the Taiwan question. The United States has formal relations with the PRC, recognizes the PRC as the sole legal government of China, and simultaneously maintains its unofficial relations with Taiwan while taking no official position on Taiwanese sovereignty. The US "acknowledges" but does not "endorse" PRC's position over Taiwan, and has considered Taiwan's political status as "undetermined". Internationally, it may also refer to the stance of numerous other countries. For instance, Australia's 1972 Joint Communiqué with the PRC recognised the Government of the PRC as China's sole legal government, and acknowledged the position of the PRC that Taiwan was a province of the PRC", but "neither supports nor opposes the PRC position" on the matter. While some countries, such as the UK, Canada, Australia, and Japan like the U.S. acknowledge but do not recognise the PRC's claim, the communiqués of some others, including Israel, Panama, and the Gambia, concurs with the PRC's interpretation. The One China principle is the position held by the People's Republic of China (PRC) and the ruling Chinese Communist Party (CCP) that there is only one sovereign state under the name China, with the PRC serving as the sole legitimate government of that China, and Taiwan is an inalienable part of China. It is opposed to the idea that there are two states holding the name "China", the People's Republic of China (PRC) and the Republic of China (ROC); as well as the idea that China and Taiwan form two separate countries. One China with respective interpretations refers to the interpretation of the 1992 Consensus asserted by the ROC's then-governing political party Kuomintang (KMT) that both the PRC and ROC had agreed that there is one "China", but disagreed on whether "China" is represented by the PRC or ROC. This interpretation of the 1992 Consensus has not been accepted by the PRC. The Democratic Progressive Party (DPP), the other major party of the ROC politics, has never acknowledged the existence of the so-called "1992 consensus" and also rejected any claim that both sides of the Taiwan Strait as "one China". Lee Teng-hui, the President of the ROC from the KMT at the time, said no consensus had been reached in 1992 and claims to the contrary were "nonsense", and that the term was "something that former Mainland Affairs Council minister Su Chi (蘇起) fabricated to placate the KMT in 2000s", which Su conceded in 2006. Prior to the 1991 constitutional amendments and democratization of Taiwan, the KMT-dominated Republic of China (ROC) government considered the ROC itself as the sole legitimate government of "China", which contested sovereignty over its constitutionally-defined territories, including the former late Qing dynasty borders of Mainland China, Tibet, Outer Mongolia, Tannu Uriankhai, and Badakhshan etc., and also legally designated the Chinese Communist Party as a "rebellious group".