During the regime of president Suharto, Indonesia built strong relations with the United States and had difficult relations with the People's Republic of China owing to Indonesia's anti-communist policies and domestic tensions with the Chinese community.
It received international denunciation for its annexation of East Timor in 1978.
Indonesia is a founding member of the Association of South East Asian Nations, and thereby a member of both ASEAN+3 and the East Asia Summit.
Since the 1980s, Indonesia has worked to develop close political and economic ties between South East Asian nations, and is also influential in the Organization of Islamic Cooperation.