American history has had its share of tragedies and triumphs. Four of our nation's leaders, our presidents, have been tragically assassinated. These unfortunate events were not just personal tragedies, but they also deeply impacted our nation's course. Abraham Lincoln, James A. Garfield, William McKinley, and John F. Kennedy are the presidents who met this untimely fate. Each of their untimely departures led to profound changes in America's policies and security measures. For instance, following the assassination of President Kennedy, the Secret Service implemented comprehensive changes to presidential security protocols. This tragic event emphasized the need for improved protection for our nation's leaders. These events serve as a stark reminder of the importance of security and unity in times of crisis. Remembering these incidents isn't about focusing on the tragedy, but about understanding how we as a nation have grown and learned from them.