Someone ignored the "Do not post on public or private property" note at the bottom and glued this (quite poorly) to a traffic light control box.
Now, as far as the "U.S. war against Africa" goes - that seems a little nonsensical. Check out this recent U.N. dispatch and take note of who tops the list of recent donors to the Horn of Africa food crisis. Certainly, if we really wanted a war on Africa the first step would be to stop sending incredible amounts of cash there. Especially when we're broke.
I cannot discern from the poster whether Ms. McKinney will be live and in person at this event, or if she'll be broadcasting from Libya via her tinfoil hat.