Historically, China's relations with the region has been uneasy, due to the country's involvement with the Vietnam War, the Malayan Communist Party during the first and second communist insurgencies in Malaysia, as well as the Communist Party of Indonesia and 30 September Movement in Indonesia. As a result, previously friendly relations with Indonesia under the Sukarno government broke off in 1967, and were not restored until 1990, while diplomatic relations with Malaysia were not established until 1974 and in 2015 Malaysia reached a status of comprehensive strategic partnership with China. China's conflict with the government of Vietnam over the support of the Khmer Rouge in Cambodia resulted in the Sino-Vietnamese War and other border conflicts. China's relationship with Singapore is good, and the latter is one of only three countries that can enjoy visa-free entry to the country, starting 17 April 2011.