From the football field to the battlefield: 7 vets with NFL ties

The National Football League has been plagued by questions of patriotism in the last few years. But whether or not the NFL kneels or stands this year, it's important to remember that some of the players and coaches have served, too.

1. George Halas

Halas was instrumental in the creation of the NFL and responsible for founding the team that went on to be the Chicago Bears in 1920. Nicknamed "Papa Bear," Halas coached the Bears for 40 seasons, leading them to six NFL titles. Halas served in the Navy during World War I and returned to Navy service from 1942-1945.

2. Ralph Wilson, Jr.

Enshrined in the Hall of Fame in 2009, Wilson founded the Buffalo Bills following his service in the Navy during World War II. He was also instrumental in the merger between the AFL and the NFL in 1970.

3. Kevin Greene

Greene retired from the NFL in 1999 and ranks third among all-time sack leaders. He led the NFL twice in that category with an impressive career playing for the Steelers, Rams, Panthers, and 49ers, with five appearances in the Pro Bowl. Greene was a member of ROTC at Auburn and served 16 years in the Army Reserves.

4. Alejandro Villanueva Martínez

Villanueva is an offensive tackle for the Steelers. A veteran Army Ranger, Villanueva was a captain in the Army, served in Afghanistan, and was decorated with a Bronze Star.

5. Tom Landry

Hall of Famer Tom Landry was a coaching phenom for the Dallas Cowboys. He led his team to two Super Bowl titles and had 20 straight winning seasons. Equally impressive was Landry's service in the Army Air Corps during World War II. The B-17 co-pilot flew 30 missions and survived a crash in Belgium. He passed away in 2000 at age 75 as a legend and a hero.

6. Dick “Night Train” Lane

The Hall of Famer had an incredible 68 career interceptions during his time with the Los Angeles Rams, Chicago Cardinals, and Detroit Lions. For nine straight years (1954-1963), Lane earned first or second-team All-NFL honors. He played in seven Pro Bowls and during his rookie season, had an unprecedented 14 interceptions - a record that still stands today. Lane served in the Army during both World War II and the Korean War.

7. Roger Staubach

Staubach, nicknamed "Captain America," won the 1963 Heisman Trophy during his time as quarterback at the U.S. Naval Academy. After graduation, Staubach served his commitment in the Navy, which included a tour in Vietnam. Following his service, Staubach joined the Cowboys and played in Dallas for all 11 seasons of his professional football career. During his tenure, the Cowboys won two of their five Super Bowl appearances.

The list of NFL greats who served their country continues with inspiring men like Pat Tillman, George McAfee, Mike Anderson, and so many more. But for every big name in the NFL, there are countless men that gave up their football dreams to serve their country.

You may not have heard of Jack Ankerson, but he only played three NFL exhibition games in 1964 before Uncle Sam called him up to serve his time. By the time his commitment was done, so was his chance to play in the NFL. But Jack, like so many others who chose service above self, is everything that's right with America and the sports we love to watch.

Whether they're a hometown hero or a household name, we salute all of our football playing and football-loving veterans.