Lao People's Democratic Republic -- (14 Dec. 1955) Latvia -- (17 Sep. 1991) Lebanon -- (24 Oct. 1945) Lesotho -- (17 Oct. 1966) Liberia -- (2 Nov. 1945) Libyan Arab Jamahiriya -- (14 Dec. 1955) Liechtenstein-- (18 Sep. 1990) Lithuania -- (17 Sep. 1991) Luxembourg-- (24 Oct. 1945)