On the 8th of August 2017, ASEAN will celebrate the 50th anniversary of its founding. ASEAN is of great importance to Singapore, the region and the world.In 1967, the Association of Southeast Asian Nations, or ASEAN in short, was founded by five countries in Southeast Asia which had just gained independence from their former colonial masters, united by a determination for the region to live in peace and stability. Singapore was one of the five founding members of ASEAN, together with Indonesia, Malaysia, Philippines and Thailand. The grouping was joined later by Brunei (1984), Vietnam (1995), Laos and Myanmar (1997), and finally, Cambodia (1999). ASEAN is today a very successful inter-governmental organization which promotes peace, stability, economic development and regional integration.This volume brings together 46 essays written by Singaporeans who have played a part in the partnership between ASEAN and Singapore. The reader will be able to glean an insight into the workings of ASEAN and Singapore's contributions to ASEAN through the lens of diplomats, academics, civil society leaders and officials.