9 May USA Today - Insurgencies Like Iraq's Usually Last 10 Years But Fail, Study Says by Jim Michaels.

Insurgencies, such as the one the United States is fighting in Iraq, last an average of more than 10 years, according to a study commissioned by the Defense Department.

For the United States, the good news is that rebels lose more often than they win. Chances for stopping an insurgency improve after 10 years, the study shows.

Stopping the violence in Iraq will take years, Pentagon leaders have said. However, there have been few efforts to analyze and quantify insurgencies in order to draw conclusions about Iraq and Afghanistan.

"The violence in Iraq is going to go on a minimum for at least three or four more years and in reality another five plus years," said Christopher Lawrence, director of The Dupuy Institute, which is conducting the study...