Nidal Hasan wants to join the terror group 'ISIS.'

  The former U.S. Army major, who is on death row at Leavenworth Kansas for the murder of 13 people at Ft. Hood in 2009, has written a letter to the brutal terrorist group telling them he wants to be part of their jihad.

  In the two page handwritten letter which Hasan signs with the initials SoA, which in his bizarre worldview stands for 'soldier of Allah,' the former Army psychiatrist and U.S. citizen writes: "I formally and humbly request to be made a citizen of the Islamic State.  It would be an honor for any believer to be an obedient citizen soldier to a people and its leader who don't compromise the religion of All-Mighty Allah to get along with the disbelievers."

  Hasan was convicted and sentenced to death last year in the 2009 massacre, in which he jumped onto a table in a Ft. Hood mustering station, yelled 'God is Great!' in Arabic, and then opened fire with a later guided pistol.  13 people died and 31 were wounded.

  Two Ft. Hood civilian police officers shot Hasan four times, ending the rampage and leaving Hasan permanently paralyzed from the waist down.

  Hasan's lawyer says it is more proof that Hasan's 'religious zeal' motivated his actions.

  Despite all this, the Obama Administration continues to claim that Hasan is not a Muslim terrorist, and continues to classify the shooting as 'workplace violence.'