Pada Juli 1963, Presiden Filipina [[Diosdado Macapagal]] menghadiri pertemuan puncak di [[Manila]]. Mafilindo diusulkan sebagai realisasi mimpi [[Jose Rizal]] menyatukan seluruh bangsa Melayu, yang terpisah oleh koloni.
Mafilindo dideskripsikan sebagai asosiasi regional yang akan menyelesaikan isu dengan semangat konsensus. Namun, Mafilindo juga merupakan bagian dari usaha [[Jakarta]] dan [[Manila]] untuk memperlambat, atau bahkan mencegah pembentukan<ref name="Trusteeship System and Non-Self-Governing Territories">[{{Cite web |url=http://unyearbook.un.org/1960YUN/1960_P1_SEC3_CH4.pdf |title=UN General Assembly 15th Session - The Trusteeship System and Non-Self-Governing Territories (pages:509-510)] |access-date=2011-02-13 |archive-date=2012-01-21 |archive-url=https://web.archive.org/web/20120121100604/http://unyearbook.un.org/1960YUN/1960_P1_SEC3_CH4.pdf |dead-url=yes }}</ref><ref>[{{Cite web |url=http://unyearbook.un.org/1963YUN/1963_P1_SEC1_CH3.pdf |title=UN General Assembly 18th Session - the Question of Malaysia (pages:41-44)] |access-date=2011-02-13 |archive-date=2011-11-11 |archive-url=https://web.archive.org/web/20111111232635/http://unyearbook.un.org/1963YUN/1963_P1_SEC1_CH3.pdf |dead-url=yes }}</ref> [[Federasi]] [[Malaysia]].<ref name="am001">{{cite web |url=http://untreaty.un.org/unts/1_60000/21/36/00041791.pdf |title=No.10760: Agreement relating to Malaysia |accessdate=2010-07-29 |publisher=United Nations |work=United Nations Treaty Collection |format=pdf |year=1963 |month=July}}</ref> Filipina mengklaim [[Sabah]],<ref>[http://untreaty.un.org/unts/1_60000/18/5/00034224.pdf United Nations Treaty Series No. 8809, Agreement relating to the implementation of the Manila Accord]</ref> dan Jakarta memprotes hasil kerja [[:en:Cobbold Commission|Komisi Cobbold]],<ref>[http://www.digitalibrary.my/dmdocuments/malaysiakini/767_Report%20of%20the%20Commission%20of%20EnquiryNorth%20Borneo%20&%20Sarawak%20&%20IGC%201962.pdf Report of the Commission of Enquiry, North Borneo and Sarawak, 1962] {{Webarchive|url=https://web.archive.org/web/20120904055037/http://www.digitalibrary.my/dmdocuments/malaysiakini/767_Report%20of%20the%20Commission%20of%20EnquiryNorth%20Borneo%20%26%20Sarawak%20%26%20IGC%201962.pdf |date=2012-09-04 }} (full report)]</ref> dan pembentukan Malaysia<ref name="am001"/> dengan alasan sebagai rencana imperialisme Britania. Rencana ini gagal ketika [[Soekarno]] melaksanakan [[Konfrontasi Indonesia-Malaysia|konfrontasi]] melawan Malaysia. Pengembangan [[ASEAN]] meniadakan semua kemungkinan revitalisasi proyek ini.
