 The coup attempt later became known as the April Fool's Day Coup or the Mesa Hawaii () Coup.On 9 September 1985, the Young Turks again unsuccessfully attempted to topple the government of General Prem, although Prem was abroad at the time.Led by Manoon and his brother, Wing Commander Manas Roopkachorn, he was supported by former Prime Minister Kriangsak Chomanan, former Supreme Commander General Serm Na Nakhon, former Army chief General Yos Thephasdin, former Air Force chief marshal Krasae Intharat and former Air Force chief marshal Arun Promthep.