Despite warnings from the German Federal Intelligence Service and the British Secret Intelligence Service questioning the authenticity of the claims, the US and British governments utilised them to build a rationale for military action in the lead up to the 2003 invasion of Iraq, including in the 2003 State of the Union address, where US President George W. Bush said "we know that Iraq, in the late 1990s, had several mobile biological weapons labs", and US Secretary of State Colin Powell's presentation to the UN Security Council, which contained a computer generated image of a "mobile biological weapons laboratory". They were suggested to be mobile production trucks for artillery balloons. On 24 September 2002, the British government published its dossier on the former Iraqi leader's WMD with a personal foreword by UK Prime Minister Tony Blair, who assured readers Iraqi President Saddam Hussein had continued to produce WMD "beyond doubt".