During the same two days in October 1967, an American battalion, ambushed in Vietnam, lost some 60 men, and an antiwar protest at the University of Wisconsin-Madison was met with violent police force. This juxtaposition of events is the subject and structure of ?They Marched Into Sunlight,? an acclaimed 2003 book by David Maraniss. That book, in turn, has inspired ?Into Sunlight,? a dance by Robin Becker that had its New York debut this weekend at Gould Hall at the French Institute Alliance Française.