Lebanese Prime Minister Saad Hariri, left, shakes hands with U.S. Secretary of State Rex Tillerson, right, at the Government House, in Beirut, Lebanon, Thursday, Feb. 15, 2018. Tillerson held talks with the Lebanese president and other officials amid a growing dispute between the small Mediterranean country and neighboring Israel over oil and gas reserves, and Israel’s construction of a border wall that Lebanon says encroaches on its territory. (AP Photo/Hussein Malla)