The following is the opinion of Sen. John Thune (R-South Dakota).

This year marks the 20th anniversary of the day South Dakota first recognized Native Americans' Day as an official state holiday. In an effort to help build strong relationships between our tribal and non-tribal citizens in South Dakota, the late Governor George S. Mickelson proposed 1990 as the "Year of Reconciliation."

Since then, our state has proudly celebrated the second Monday in October as a time to remember the rich and diverse heritage of the Lakota, Dakota, and Nakota Nations. The Great Sioux Nation's influence on South Dakota is evident from the names of our towns, cities, rivers, and other geographical landmarks, to the very name of our state.

Native Americans' Day provides an opportunity for all of our state's citizens to learn about the unique heritage of our nine tribes, including their traditional music, dance, food, artwork, history, and so much more.

In addition to their cultural contributions to South Dakota, Native Americans have also bravely served our country with distinction through the armed forces over the past 200 years. From the Revolutionary War, to present day engagements in Iraq and Afghanistan, Native Americans have fought with extraordinary honor in defense of this nation.

Despite their great contributions, South Dakota's tribal communities continue to face real challenges. As a state, we must continue to work toward addressing these challenges, including improving childhood nutrition, reservation security, access to education, and economic development. I will continue to work with my colleagues in Congress to address these issues, and work toward long-term solutions.

On this Native Americans' Day, let us all celebrate the honor, sacrifice, and tradition of South Dakota's tribal communities.