The alleged mastermind of the Sept. 11 terror attacks wrote former President Barack Obama in a long suppressed letter that America brought the 9/11 attacks on itself for years of foreign policy that killed innocent people across the world.

“It was not we who started the war against you in 9/11. It was you and your dictators in our land,” Khalid Sheik Mohammed, 51, writes in the 18-page letter to Obama, who he addressed as “the head of the snake” and president of “the country of oppression and tyranny.” It is dated January 2015 but didn’t reach the White House until a military judge ordered Guantánamo prison to deliver it days before Obama left office.

In it, the man on trial for his life at Guantánamo as the alleged architect of the hijackings that killed nearly 3,000 people in New York, the Pentagon and a Pennsylvania field adds that he neither fears a death sentence nor life in a prison cell. He also appends a 50-page manuscript he wrote, “The Truth About Death,” illustrated with a picture of a noose.