From this position of strength, we've begun to wind down the war in Afghanistan. Ten thousand of our troops have come home. Twenty-three thousand more will leave by the end of this summer. This transition to Afghan lead will continue, and we will build an enduring partnership with Afghanistan so that it is never again a source of attacks against America. As the tide of war recedes, a wave of change has washed across the Middle East and North Africa, from Tunis to Cairo, from Sana'a to Tripoli. A year ago, Qadhafi was one of the world's longest serving dictators, a murderer with American blood on his hands. Today, he is gone. And in Syria, I have no doubt that the Asad regime will soon discover that the forces of change cannot be reversed and that human dignity cannot be denied. How this incredible transformation will end remains uncertain. But we have a huge stake in the outcome. And while it's ultimately up to the people of the region to decide their fate, we will advocate for those values that have served our own country so well. We will stand against violence and intimidation. We will stand for the rights and dignity of all human beings: men and women; Christians, Muslims, and Jews. We will support policies that lead to strong and stable democracies and open markets, because tyranny is no match for liberty. And we will safeguard America's own security against those who threaten our citizens, our friends, and our interests. Look at Iran. Through the power of our diplomacy, a world that was once divided about how to deal with Iran's nuclear program now stands as one. The regime is more isolated than ever before. Its leaders are faced with crippling sanctions, and as long as they shirk their responsibilities, this pressure will not relent. Let there be no doubt: America is determined to prevent Iran from getting a nuclear weapon, and I will take no options off the table to achieve that goal. But a peaceful resolution of this issue is still possible, and far better. And if Iran changes course and meets its obligations, it can rejoin the community of nations. The renewal of American leadership can be felt across the globe. Our oldest alliances in Europe and Asia are stronger than ever. Our ties to the Americas are deeper. Our ironclad commitment--and I mean ironclad--to Israel's security has meant the closest military cooperation between our two countries in history. We've made it clear that America is a Pacific power, and a new beginning in Burma has lit a new hope. From the coalitions we've built to secure nuclear materials, to the missions we've led against hunger and disease, from the blows we've dealt to our enemies, to the enduring power of our moral example, America is back.