ally alongside the U.S. Through its military personnel Turkey continues to train Albanian armed forces and also to provide assistance in logistics and modernisation efforts of the Albanian military. Radar systems for the surveillance of Albanian airspace in addition to telecommunication equipment have been supplied by Turkey to Albania. Albania receives Turkish assistance for police training. Turkey has continuously supported Albania from the 1990s on EU related matters as both countries view EU membership as an eventual final goal and common objective. State relations of Albania with Turkey are friendly and close, due to maintenance of close links with the Albanian diaspora in Turkey and strong Turkish sociopolitical, cultural, economic and military ties with Albania. Turkey has been supportive of Albanian geopolitical interests within the Balkans. In Gallup polls conducted in recent times Turkey is viewed as a friendly country by 73% of people in Albania. Albania has established political and economic ties with Arab countries, in particular with Arab Persian Gulf states who have heavily invested in religious, transport and other infrastructure alongside other facets of the economy in addition to the somewhat limited societal links they share. Albania is also working to develop social-political and economic ties with Israel. Greece After the fall of the Albanian communist regime in 1991, relations between Greece and Albania became increasingly strained because of widespread allegations of mistreatment by Albanian authorities of the Greek ethnic minority in southern Albania and of mistreatment the Albanian communities in northern Greece. A wave of Albanian illegal economic migrants to Greece exacerbated tensions. The crisis in Greek–Albanian relations reached its peak in late August 1994, when an Albanian court sentenced five members (a sixth member was added later) of the ethnic Greek political party Omonia to prison terms on charges of undermining the Albanian state. Greece responded by freezing all EU aid to Albania, and sealing its border with Albania. In December 1994, however, Greece began to permit limited EU aid to Albania, while Albania released two of the Omonia defendants and reduced the sentences of the remaining four. There are still other impending issues in the relations between the two countries, regarding many Albanian workers in Greece who have not received legal papers despite promises by the Greek government. In 1996, the two countries signed a Treaty of Peace and Friendship and discussed the issues of the status of Albanian refugees in Greece and education