The seed money of major North Caucasus or Chechen terrorist groups such as the Caucasus Emirate, the Islamic International Peacekeeping Brigated (IIPB), the Special Purpose Islamic Regiment (SPIR) and the Riyadus-Salikhin Reconnaissance and Sabotage Battalion of Chechen Martyrs (RSRSBCM) can all be traced back to Al Qaeda and Osama bin Laden.
Although we don’t yet know to which groups the two Russian-born brothers of Chechen descent who were identified as suspects in the Boston Marathon bombings may belong, it’s important to take a look back at the origins of the money behind the North Caucasus jihadist network overall.
The Council on Foreign Relations says that, “According to the U.S. State Department, the Islamic International Peacekeeping Brigade is the primary channel for Islamic funding of the Chechen guerillas, in part through links to al-Qaeda-related financiers on the Arabian Peninsula.”
The Middle East Forum has more on IIPB:
In October 1999, emissaries of [IIPB founder Shamil Basayev] and [mujahideen leader] Ibn al-Khattab traveled to Kandahar where bin Laden agreed to provide fighters, equipment, and money to conduct terrorism and aid the fight against Russia. Later that year, bin Laden reportedly sent substantial sums of money to Basayev, Ibn al-Khattab, and Chechen commander Arbi Barayev to train gunmen, recruit mercenaries, and buy ammunition.
The United Nations says that, “With Al‑Qaida’s financial support, Al-Khattab also mobilized fighters from Ingushetia, Ossetia, Georgia and Azerbaijan to fight in Chechnya and Dagestan.”