According to his website, "In 1991, when the United States invaded Iraq in the Gulf War, Berg intensified his protest activities despite reprimands from his school's administrator.

[2][3] After his release and after refusals to return to the States with help from U.S. government, and in the aftermath of the Abu Ghraib revelations [citation needed], Nick was abducted and murdered by Islamic militants on May 7, 2004.

A video of his decapitation was posted on the internet, leading to international media coverage of Michael Berg, his family, and his antiwar stance.

[7] In 2005 Berg moved from Chester County, Pennsylvania, to Wilmington, Delaware, where he registered as a member of the Green Party.

"[8] In the 2006 race for Delaware's at-large congressional district seat in the United States House of Representatives, Berg ran as the Green Party candidate.