Treaty of Lagos
Yarjejeniyar Legas/Treaty of Lagos ce ta kafa kungiyar ECOWAS a ranar 28 ga watan Mayu, 1975, a Legas, Jihar Legas, Najeriya. An kafa kungiyar ECOWAS ne domin inganta haɗin gwiwa da haɗin kai domin samar da kungiyar tattalin arziki da hada-hadar kuɗi domin bunkasa tattalin arziki da ci gaba a yammacin Afirka.

Jam'iyyun Jiha 
 Benin
 Burkina Faso
 Cape Verde
 Gambia
 Ghana
 Guinea-Bissau
 Liberia
 Mali

 Senegal

 Togo
 Guinea–suspended from Community after 2008 coup d'état
 Niger–suspended from Community after 2009 auto-coup
 Ivory Coast - suspended from Community after 2010 elections

Manazarta 

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