U "manifestu" na 1.500 stranica, pod naslovom "2083: Evropska deklaracija nezavisnosti", koji je postavljen na internetu zajedno s drugim spisima, Breivik je izjavio da su za njega "kap u punoj čaši" bili zračni napadi NATO-a na Srbiju 1999. godine, navodi AP.
In a 1,500-page "manifesto," titled "2083: A European Declaration of Independence" which was posted on the internet along with other writings, Breivik said that it was NATO's air strikes on Serbia in 1999 that "tipped the scales" for him, according to the AP.