The 1975 Southeast Asian Peninsular Games, officially known as the 8th Southeast Asian Peninsular Games was a Southeast Asian multi-sport event held in Bangkok, Thailand from 9 to 16 December 1975.
 This was the third time Thailand hosted the games, and its first time since 1967.
 Previously, Thailand also hosted the 1959 inaugural games.
 South Vietnam, Cambodia and Laos, which only sent token squads made up of military personnel to previous games, declined to participate due to internal political problems.
 The games is the last games to bear the Southeast Asian Peninsular Games name, before it was renamed the Southeast Asian Games in the next edition of the games.
 The games was opened and closed by Bhumibol Adulyadej, the King of Thailand at the Suphalachasai Stadium.
 The final medal tally was led by Thailand, followed by host Singapore, Burma and Malaysia.
The 1967 Southeast Asian Peninsular Games, officially known as the 4th Southeast Asian Peninsular Games, was a Southeast Asian multi-sport event held in Bangkok, Thailand from 9 to 16 December 1967 with 16 sports featured in the games.
 Cambodia once again declined to host this edition of the games, as it did in 1963.
 This was Thailand's second time hosting the Southeast Asian Games, and its first time since the 1959 inaugural games.
 The games was opened and closed by Bhumibol Adulyadej, the King of Thailand at the Suphachalasai Stadium.
 The final medal tally was led by host Thailand, followed by Singapore and Malaysia.
The 2015 Southeast Asian Games (Malay: "Sukan Asia Tenggara 2015" ; ), officially known as the 28th Southeast Asian Games (or simply 28th SEA Games), was a Southeast Asian multi-sport event hosted by the city-state of Singapore.
 It was the fourth time the country hosted the games and the first time since 1993.
 Singapore previously also hosted the games in 1973 and 1983.
The 1963 Southeast Asian Peninsular Games was cancelled, as the designated host Cambodia was not able to host the event due to unsettling in-country conditions , and a disagreement with the International Amateur Athletic Federation.
 The 3rd SEAP Games then passed to Laos as hosts, but they begged off the 1965 event citing financial difficulties and hosted the 2009 Southeast Asian Games decades later.
 Malaysia stepped in.
 The 1965 Southeast Asian Peninsular Games was held in Kuala Lumpur with around 1,300 athletes and officials taking part.
 By then, the SEAP Games Federation had gained another member which is Singapore after Singapore's expulsion from Malaysia occurred in August that year.
The 1959 Southeast Asian Peninsular Games, officially known as the 1st Southeast Asian Peninsular Games was the first and inaugural edition of the biennial multi-sport event for Southeast Asian athletes, organised by the SEAP Games Federation.
 It was held in Bangkok, Thailand from 12 to 17 December 1959 with 12 sports featured in the games.
 Cambodia, one of the six founding members of the SEAP Games Federation, did not compete at the inaugural edition.
 For the first time and first among all Southeast Asian nations, Thailand hosted the Southeast Asian Peninsular Games, which later known as the Southeast Asian Games.
 The games was opened and closed by Bhumibol Adulyadej, the King of Thailand at the Suphachalasai Stadium.
 The final medal tally was led by host Thailand, followed by its neighbouring countries, Burma and Malaya.
The 2009 Southeast Asian Games (Lao: ກີລາພູມິພາກອາຊີຕາເວັນອອກສຽງໃຕ້ 2009 , Kila phoumipak asi taven oak siang tai 2009), officially known as the 25th Southeast Asian Games was a Southeast Asian multi-sport event hosted by Vientiane, Laos.
 This was the first time Laos had held the Southeast Asian Games as Laos had previously declined hosting the 1965 Southeast Asian Peninsular Games, citing financial difficulties.
The 1973 Southeast Asian Peninsular Games, officially known as the 7th Southeast Asian Peninsular Games was a Southeast Asian multi-sport event held in Singapore from 1 to 8 September 1973 with 16 sports featured in the games.
 This was the first time Singapore hosted the games.
 Singapore is the fourth nation to host the Southeast Asian Games after Thailand, Burma and Malaysia.
 The games was opened and closed by Benjamin Sheares, the President of Singapore at the Singapore National Stadium.
 The final medal tally was led by Thailand, followed by host Singapore and Malaysia.
The 1961 Southeast Asian Peninsular Games officially known as the 2nd Southeast Asian Peninsular Games was a Southeast Asian multi-sport event held in Rangoon, Burma from 11 to 16 December 1961 with 13 sports featured in the games.
 This was the first time all six founding members of the SEAP Games Federation competed in the biennial sports festival and the first time Myanmar, then known as Burma hosted the games.
 Burma, later known as Myanmar is the second country to host the Southeast Asian Peninsular Games, which later known as the Southeast Asian Games after Thailand.
 The games was opened and closed by Win Maung, the President of Burma at the Bogyoke Aung San Stadium.
 The final medal tally was led by host Burma, followed by Thailand and Malaya.
The 1969 Southeast Asian Peninsular Games officially known as the 5th Southeast Asian Peninsular Games, was a Southeast Asian multi-sport event held in Rangoon, Burma from 6 to 13 December 1969 with 15 sports featured in the games.
 Vietnam had reluctantly declined to host this edition because of the Vietnam War.
 Singapore, the youngest member of the SEAP Games Federation at the time, suggested in this edition of the games to change the name of the sports festival to the Southeast Asia Games.
 Although it was not officially stated, the inclusion of the Philippines and Indonesia in the expanded federation was to greatly help alleviate the hosting problems, as well as to set higher and more competitive standards in the games.
 After hosting the 5th edition, Burma declined hosting succeeding games due to lack of financial capability.
 This was Burma's second time to host the games and its first time since 1961.
 The games was opened and closed by Ne Win, the President of Burma at the Bogyoke Aung San Stadium.
 The final medal tally was led by host Burma, followed by Thailand and Singapore.
The 1965 Southeast Asian Peninsular Games officially known as the 3rd Southeast Asian Peninsular Games was a Southeast Asian multi-sport event held in Kuala Lumpur, Malaysia, from 14 to 21 December 1965 with 14 sports featured in the games.
 Originally to be hosted by Laos, the third edition of the games was hosted by Malaysia after the former was not able to honour its hosting commitment citing financial difficulties and would later known to have hosted the 2009 Southeast Asian Games decades later.
 Two years earlier, the third SEAP Games was cancelled as Cambodia pulled out of hosting the event due to internal strife.
 This was the first time Malaysia host the games.
 Malaysia is the third country to host the Southeast Asian Peninsular Games, which later known as the Southeast Asian Games after Thailand and Myanmar, then Burma.
 The games was opened and closed by Ismail Nasiruddin, the King of Malaysia at the Stadium Merdeka.
 The final medal tally was led by Thailand followed by host Malaysia and Singapore.

Question: The 2015 Southeast Asian Games, and the 1973 Southeast Asian Peninsular Games, were held in which city?
Answer: Singapore