The Army officer who once taught that the U.S. ought to consider “Hiroshima tactics” for a “total war” on Islam has put America’s top general on notice for a possible lawsuit. Lt. Col. Matthew Dooley is accusing the government of concealing “the truth about Islam” at a time when proponents of his view of an inevitable clash between Islam and the West have succeeded at fanning precisely those flames.

On Thursday, attorneys for Dooley told Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey that Dooley is considering “a potential civil action,” said Marine Col. David Lapan, a spokesman for Dempsey. The written notice does not indicate that they’ve actually filed a lawsuit against Dempsey.