It is the football team of the University of Louisville.
There is no National Football team named the "Proud Americans" But if that was a nickname for a team, my closest guess would be the New England Patriots
The nickname of the football team of Louisville is "Cardinals". This is the name that is used for all the athletic teams for the University of Louisville. The nickname is sometimes shortened to "Cards".
Botswana national football team was created in 1968.
Wales national football team was created in 1876.
Scotland national football team was created in 1872.
England national football team was created in 1872.
Greenland national football team was created in 1971.
Sweden national football team was created in 1908.
Netherlands national football team was created in 1905.
Libya national football team was created in 1918.
Serbia national football team was created in 1414.