Eritrea has retaliated by hosting militant groups against Ethiopia as well. The United Nations Security Council argues that Eritrea and Ethiopia have expanded their dispute to a second theater, Somalia. In March 2012, Ethiopia attacked Eritrean army outposts along the border. Addis Ababa said the assault was in retaliation for the training and support given by Asmara to subversives while Eritrea said the U.S knew of the attacks, an accusation denied by US officials. At a summit on July 8, 2018 in Asmara, Eritrea's President Isaias Afewerki and Ethiopia's Prime Minister Abiy Ahmed pledged to restore diplomatic relations and open their borders to each other. The next day, they signed a joint declaration formally ending the Eritrean–Ethiopian border conflict. Another peace agreement was signed in Jeddah, Saudi Arabia on 16 September later that year. Throughout the Ethiopian-Eritrean Diaspora, there have been many multi-ethnic and bi-national origin community organizations founded by and for Eritreans and Ethiopians to foster good relationships, promote and express cultural commonalities well before diplomatic ties between the two countries's governments were ever restored. A majority of these organizations are found on college/university campuses throughout the United States, Canada, and other parts of the Ethiopian-Eritrean Diaspora.