Islamic terrorism is financed by a global array of individuals, fronts, businesses, banks, criminal enterprises, nominally humanitarian organizations and states. Financial flows take a variety of routes – some complex, some simple, but all are evasive. The combined annual budget of Islamic terror groups between 1995-2005 hovers around the US $1 billion mark – the equivalent of $100 million per annum. This represents a substantial increase from estimates for the years 1984-1994 of US $80 million.