The Buffalo Six (known primarily as Lackawanna Six, but also the Lackawanna Cell, or Buffalo Cell) is a group of six Yemeni-American friends who pled guilty to charges of providing material support to al-Qaeda in December 2003, based on their having attended an al-Qaeda training camp in Afghanistan together in the Spring of 2001 (before 9/11 and the US invasion of Afghanistan). The suspects were facing likely convictions with steeper sentences under the "material support law" which requires no proof that a defendant engaged in terrorism, aided or abetted terrorism, or conspired to commit terrorism.