Provided that the People's Republic of China does not attack Taiwan, Chen's administration would not do the following things (the "four noes"):
The "four noes and one without" has become an important part of Taiwan-US relations. Several times, Chen has had to reassure the United States that the "four noes and one without" policy has not been abolished. The phrase that the United States used with regard is that the United States "appreciates Chen's pledge and takes it very seriously."
See also: