Complex sentence: As a child, Didion attended kindergarten and first grade, although, because her father was in the Army Air Corps during World War II and her family was constantly being relocated, she did not attend school on a regular basis.
Split into simpler sentences: As a child, Didion attended kindergarten and first grade. Because her father was in the Army Air Corps during World War II, her family was constantly relocated and she did not attend school on a regular basis.