I have no reason to doubt that.
Putin said in December 2001 that the Chechnya deal was really about creating a global caliphate. A month later the PM of Singapore announced evidence on a captured PC that indicated El-Jemiaah (sp?) has plans to create a SEAsian Caliphate that would link with regional caliphates in Africa, the ME and the Caucusus Mountains. I have no reason to doubt that this is still the objective.
On every battlefield where you find dead al-Qaeda you will find Chechens. Need I say more?