The soldiers expressed their gratitude over and over to the NFL coaches who made the trip to Iraq.

"They kept thanking us," said the Tennessee Titans' Jeff Fisher. "We kept thanking them."

Fisher, the New York Giants' Tom Coughlin, the Baltimore Ravens' John Harbaugh, former Pittsburgh Steelers coach Bill Cowher and former Tampa Bay Buccaneers coach Jon Gruden are taking part in the first NFL-USO coaches tour over the Fourth of July weekend.

A world they knew only through the distant glimpses of news reports turned very real for the coaches as they met with hundreds of soldiers in three cities in a long first day Thursday. In a phone interview from Baghdad, Cowher recalled talking to military members on their second or third deployment who described how much the bombs and casualties have decreased from several years ago.

The coaches wanted to know about the troops' lives; the soldiers wanted to know about their favorite NFL teams. The coaches began the day meeting with Gen. Ray Odierno, the top U.S. commander in Iraq. They all talked about the similarities between football and the military.

"The whole concept is about trying to build a team based on trust, camaraderie, sacrifice," Cowher said. "They can identify with our game."

After two days of travel, the coaches arrived in Iraq late Wednesday night. On Thursday they met with soldiers in Mosul, Kirkuk and Baghdad.

The NFL has been working with the USO to send players to visit troops overseas since 1966.

Cowher fielded plenty of questions from the troops about whether he'll coach again. But his thoughts were far from football.

"Sometimes we worry too much about ourselves," he said, "instead of about what kind of difference we can make in the big picture for other people."