Osama bin laden and his organization al-qaeda was the middle east suspect of the 9-11 attacks on america and global terrorism elsewhere. true or false?

Osama bin laden and his organization al-qaeda was the middle east suspect of the 9-11 attacks on america and global terrorism elsewhere that is true, AL Qaeda was the main organization reposnisble for that in late 20th cnetury and in the begining of 21st it was the biggest terrorist group in the world