Doesn't mean anything?
War on Poverty is a commonly known dimocrap-initiated program. Saying it doesn't mean anything is like suggesting the phrase "Miracle on Ice" is ambiguous and no one can be sure what that means either. Why don't you just google the phrase and see what comes up. For now, let's jut add this to the growing list of proofs that you're an uneducated twit.
I'd be more than happy to go in depth about why poverty rates are as high as they are today, and why a large reason for that can be tied back to this inane program. You won't understand much of it though without knowing what the program even is, though. So go do some research. The short version is this program created enormous government dependency while keeping those who received benefits below the poverty line. If you want to begin a real war on poverty, let's at least begin by renaming it a war on government dependency and go from there.