Based on the clue 'before it meant a space between opposing armies it...', what is the answer?

Based on the clue 'before it changed direction this musical was calle...', what is the answer? Based on the clue 'before it empties into the north sea the rhine spl...', what is the answer? Based on the clue 'before it first touches down on the ground its fun...', what is the answer? Based on the clue 'before it got updated with a hemi this dodge muscl...', what is the answer? Based on the clue 'before it merges with the white at khartoum this r...', what is the answer? What is associated with: before it re ran re ran re ran it ran on cbs beginning in 1951? Based on the clue 'before it reaches manaus brazil this river is know...', what is the answer? Based on the clue 'before it reaches trenton it skirts the kittatinny...', what is the answer?