In an interview with The Associated Press before a lecture Monday at Kansas State University, the head of the U.S. Central Command said insurgents and the Taliban have been able to regroup and find safe havens.
Petraeus said it would be wrong for Americans who've seen improvements in Iraq under his command in 2007 and 2008 to expect
the same results in Afghanistan.
Petraeus says it's impossible to ``just take the lessons from one situation and apply them to another as rote.''
He also said to expect an increased international presence in the Horn of Africa to combat piracy.
Petraeus went on to address those topics before a crowd of more than 1000 people at Bramlage Colosseum. He also took time to acknowledge the many servicemen and servicewomen who attended.
Not everyone came to cheer Petraeus' appearance. A group of protesters gathered outside the building to rally for peace.
The Associated Press and WIBW-TV contributed to this report.