James M. Lindsay argues that while the United States remains the most significant military, diplomatic, and economic power in a changing geopolitical environment, it faces increasing difficulty in driving the global agenda.

Despite international pressure, Iran appears to be continuing its march toward getting a nuclear bomb.

America Unbound argues that President Bush has redefined how America engages the world, shedding the constraints that friends, allies, and international institutions have traditionally imposed on its freedom, insisting that an America unbound is a more secure America.

A preview of world events in the coming week from CFR.org: World powers convene in Geneva for a crisis meeting on Syria; Mexico holds presidential elections; and the U.S. House and Senate go into recess.

A preview of world events in the coming week from CFR.org: The presidential election runoff takes place in Egypt; nuclear talks between Iran and the P5+1 resume; and the G20 and Rio+20 summits convene.

A preview of world events in the coming week from CFR.org: The U.S.-India Strategic Dialogue takes place in Washington; The U.S. House Rises for Recess; And the International Criminal Court Hears submissions for sentencing in the Lubanga case

A preview of world events in the coming week from CFR.org: the UN Human Rights Council holds a special session on Syria; the IAEA board of governors meets in Vienna; and the Shanghai Cooperation Organization Summit convenes.

A preview of world events in the coming week from CFR.org: Ireland holds a referendum on the EU's new fiscal treaty; the UN Security Council debates Yemen; UN climate talks convene in Bonn; and Memorial Day is marked.

A preview of world events in the coming week from CFR.org: Presidential elections take place in Egypt; the NATO summit convenes in Chicago; and Iran and P5+1 nuclear talks take place in Baghdad.

A preview of world events in the coming week from CFR.org: The IAEA resumes nuclear talks with Iran; G8 summit convenes at Camp David; Francois Hollande is inaugurated as France's new president; And the Cannes film festival opens.

A preview of world events in the coming week from CFR.org: The second round of presidential elections takes place in France; Vladimir Putin is sworn into office as new president of Russia; North Korea plans a third nuclear test; and Secretary Clinton visits Bangladesh and India.

A preview of world events in the coming week from CFR.org: The one-year anniversary of Osama Bin Laden killing is marked; the fourth round of U.S.-China Strategic Economic Dialogue takes place in Beijing; the UN's Ban Ki-moon visits Myanmar; and Vietnam marks Liberation Day.

A preview of world events in the coming week from CFR.org: France holds its presidential election; the funeral of Malawian President Mutharika is held; the Chernobyl disaster passes its twenty-sixth anniversary; and Earth Day is marked.

A preview of world events in the coming week from CFR.org: North Korea plans a controversial satellite launch; the Summit of the Americas convenes in Colombia; and the IMF and World Bank hold spring meetings.

A preview of world events in the coming week from CFR.org: The United States takes over the UN Security Council presidency; World Bank nominee Jim Yong Kim embarks on a world tour; and by-elections are held in Myanmar.

A preview of world events in the coming week from CFR.org: The Arab League summit convenes in Baghdad; Obama attends a nuclear summit and visits the Demilitarized Zone during his South Korea trip; a presidential runoff election takes place in Senegal; and the Pope goes to Cuba.

A preview of world events in the coming week from CFR.org: The UN Security Council debates sanctions on Iran and the mission in Afghanistan; Greece is set to receive the first payment of its second bailout.

A preview of world events in the coming week from CFR.org: The anniversary of Japan's triple disaster is marked; Syria's uprising reaches the one-year mark; and British Prime Minister David Cameron visits Washington.

A preview of world events in the coming week from CFR.org: Presidential elections are held in Russia; parliamentary elections are held in Iran; AIPAC holds its annual conference; and ten U.S. states vote for GOP candidates on Super Tuesday.

A preview of world events in the coming week from CFR.org: Congressional committees debate the international affairs budget; presidential primaries are held in Arizona and Michigan; and the UN Human Rights Council convenes in Geneva.

A preview of world events in the coming week from CFR.org: UN nuclear officials visit Iran for a second time; a Friends of Syria meeting is held in Tunis; and G20 foreign ministers convene in Mexico.

A preview of world events in the coming week from CFR.org: President Obama presents the 2013 budget to Congress; the Senate Armed Services Committee debates worldwide threats; Chinese Vice President Xi Jinping visits Washington; and the one-year anniversary of Mubarak's ouster is marked.

A preview of world events in the coming week from CFR.org: The debate over intervention in Syria continues; an annual security conference convenes in Munich; and the twentieth anniversary of the Maastricht Treaty is marked.