Inhabitants of this river's delta were forced to flee across the Khwai River during the 1960s when its Moremi Game Reserve was designated a national park, and it provides water to Lake Ngami.
A 2004 book by John Mendelsohn and Selma el Obeid is subtitled The Flow of a Lifeline, and is titled after this body of water.  The Popa Falls lie on this river, while the city of Maun near its delta is known as its nation's capital of tourism. Inhabitants of this river's delta were forced to flee across the Khwai River during the 1960s when its Moremi Game Reserve was designated a national park, and it provides water to Lake Ngami. Much of this river's water is eventually discharged into the Boteti River, which itself flows into the Makgadikgadi Pan. For 20 points, identify this river of Angola, Namibia and Botswana that empties into its namesake delta in the Kalahari Desert, thus never making it to the ocean.
A 2004 book by John Mendelsohn and Selma el Obeid is subtitled The Flow of a Lifeline, and is titled after this body of water.  
Okavango River [accept Cubango River]