The flag of Botswana is in the picture. This blue flag with a black stripe in a thin white frame replaced the Union Jack in 1966, the year when the country gained independence and adopted its modern name. Many African flags use the Pan-Africanist movement colors or the colors of leading political parties, and Botswana's flag is one of the few exceptions. The blue color here represents water or rain, which is very precious for the country, as it suffers from droughts from time to time. The black stripe within a white frame resembles that of a zebra, the national animal of Botswana. It's also a symbol of friendship between people of different races.

More Info: en.wikipedia.org