for Summer's End by Audrey Couloumbis
The summer Grace turns thirteen is when everything changes. The Vietnam War is raging, and Grace's brother, Collin, is drafted. But Collin decides to take a stand and burn his draft card, igniting a war within the family. Grace suddenly finds herself bewildered and angry, thrust into a turbulent political climate. The war is everywhere, and Grace quickly learns that she cannot escape it, no matter how hard she tries.
Publisher description retrieved from Google Books.