In the past seven years, we've also seen images that have sobered us. We've watched throngs of mourners in Lebanon and Pakistan carrying the caskets of beloved leaders taken by the assassin's hand. We've seen wedding guests in blood-soaked finery staggering from a hotel in Jordan, Afghans and Iraqis blown up in mosques and markets, and trains in London and Madrid ripped apart by bombs. On a clear September day, we saw thousands of our fellow citizens taken from us in an instant. These horrific images serve as a grim reminder: The advance of liberty is opposed by terrorists and extremists -- evil men who despise freedom, despise America, and aim to subject millions to their violent rule. Since 9/11, we have taken the fight to these terrorists and extremists. We will stay on the offense, we will keep up the pressure, and we will deliver justice to our enemies. (Applause.) We are engaged in the defining ideological struggle of the 21st century. The terrorists oppose every principle of humanity and decency that we hold dear. Yet in this war on terror, there is one thing we and our enemies agree on: In the long run, men and women who are free to determine their own destinies will reject terror and refuse to live in tyranny. And that is why the terrorists are fighting to deny this choice to the people in Lebanon, Iraq, Afghanistan, Pakistan, and the Palestinian Territories. And that is why, for the security of America and the peace of the world, we are spreading the hope of freedom. (Applause.) In Afghanistan, America, our 25 NATO allies, and 15 partner nations are helping the Afghan people defend their freedom and rebuild their country. Thanks to the courage of these military and civilian personnel, a nation that was once a safe haven for al Qaeda is now a young democracy where boys and girls are going to school, new roads and hospitals are being built, and people are looking to the future with new hope. These successes must continue, so we're adding 3,200 Marines to our forces in Afghanistan, where they will fight the terrorists and train the Afghan Army and police. Defeating the Taliban and al Qaeda is critical to our security, and I thank the Congress for supporting America's vital mission in Afghanistan. (Applause.) In Iraq, the terrorists and extremists are fighting to deny a proud people their liberty, and fighting to establish safe havens for attacks across the world. One year ago, our enemies were succeeding in their efforts to plunge Iraq into chaos. So we reviewed our strategy and changed course. We launched a surge of American forces into Iraq. We gave our troops a new mission: Work with the Iraqi forces to protect the Iraqi people, pursue the enemy in its strongholds, and deny the terrorists sanctuary anywhere in the country.