The Summer Olympics in Rio are just days away with the opening ceremonies scheduled for Friday night.
The honor of carrying the nation's flag goes to just one athlete from each country.
And this year the US flag will be carried by the most decorated athlete in Olympic history.
Swimmer Michael Phelps has been selected by members of the US Olympic team to be the flag bearer.
Phelps is heading into his fifth summer games after coming out of retirement.
He has won 18 gold medals and 22 overall medals in his previous four Olympics.