Kiribati -- pronounced Kiribas -- is a country of about 32 atolls and one regular island with a land area less than 800 sq. km spread over more than 3,000,000 sq. km of ocean.
After independence was regained in 1979 (and the country was expanded), the International Date Line divided Kiribati between two different days. In 1995, the Date Line was changed so the entire country would be west of the line, making Kiribati the eastern-most country in the world.
Two of Kiribati's smaller islands disappeared underwater in 1999 and rising ocean levels are decreasing arable land due to increased soil salination. It is only a matter of time before Kiribati disappears beneath the ocean.
Kiribati on Wikipedia