中国大陆和台湾基本上和平共处了近50年,但在此期间,两岸关系始终处于复杂且忽冷忽热的状态之中。目前,两岸关系又在经历一个紧张时期。原因是今年3月台湾表示想加入美国提出的战区导弹防御体系。美国提出的战区导弹防御建议的中心是保护韩国和日本不受北朝鲜导弹的攻击,但台湾也想将其纳入战区导弹防御体系的保护之下。大陆对美国提出的战区导弹防御计划态度明确,并对台湾想加入 China and Taiwan have basically enjoyed peaceful coexistence for nearly 50 years. During this period, however, cross-Strait relations have always been in a complicated state with hot and cold conditions. At present, cross-Strait relations are going through a period of tension. The reason is that Taiwan said in March this year it wants to join the theater missile defense system proposed by the United States. The United States has put forward the proposal of a theater missile defense center that protects South Korea and Japan from North Korea missile attacks. However, Taiwan also wants to include it under the protection of the theater missile defense system. The mainland has a clear-cut attitude toward the theater missile defense plan proposed by the United States and wants to join Taiwan