"Search and Destroy," detail (1967)

"When Leon Golub and I came back from Paris, and I saw that we had gotten involved in Vietnam, I realized that the United States had lost its aura and its right to claim how pure we were. We had entered a war when it was uncalled for. And why? It was specious reasoning from Washington as far as I was concerned. I realized how guilty we were as Americans. I felt a responsibility, and that was working on me when I started the ‘War Series.’"

- Nancy Spero