Global terrorism is defined as acts of crime or violence intended to further political of religious ideologies. The terrorism can consist of threats, violence or intimidation to coerce a government, group or society in general.
Global terrorism comes in many forms including suicide bombings and attacks on foreign lands. One major example of global terrorism is the September 11, 2001 attacks where members of a terrorist group called Al Qaeda flew planes into the World Trade Center in New York City. Not all terrorism takes place on such a large scale, however, and it is more common to see suicide bombers killing civilians and other groups of people in countries around the world.
When terrorism takes place, it affects not just the country in which the violence or threats are taking place, but it involves many countries. Stricter security and global cooperation is often required to try and prevent the terrorists groups from succeeding in their cause.