Gen. David Petraeus, the top U.S. commander in Iraq, takes a drink in Baqouba, 60 kilometers (35 miles) northeast of Baghdad, Saturday, July 7, 2007. Sunni extremists are likely to try a series of high-profile attacks to grab the headlines ahead of a watershed report to Congress in September on political and military progress in Iraq, the top U.S. commander said Saturday. (AP Photo/Robert H. Reid)