Veto the U.N. Arms Treaty. It would be a direct violation to The Constitution of the United States of America.

United States Constitution: 2nd Amendment:

"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

This is a right that Americans hold true. One that would seek to abolish the rights set forth in the U.S. Constitution is not a leader; he or she is guilty of treason.