THESSALONIKI, Greece (AP) — Israeli Prime Minister Benjamin Netanyahu promised Thursday to promote plans for an ambitious Mediterranean undersea natural gas pipeline project, in a bid by his country to become a key European energy supplier. Israel is hoping to export much of its newly discovered natural gas to Europe by a proposed 2,200-kilometer (1,350-mile) undersea pipeline to Cyprus and Greece. Netanyahu met with Greek Prime Minister Alexis Tsipras and Cypriot President Nicos Anastasiades, after the three countries signed a joint declaration in Tel Aviv in April to promote construction of the pipeline. More than 3,500 police officers were deployed around the city, which historically had a large Jewish community that was almost wiped out during the Nazi occupation in World War II.