Delegations from 46 countries are in the United States this week for a summit on nuclear security, but the foreign leaders in attendance are unlikely to let their time in Washington go by without raising other concerns. Here's a look at who's coming and what's on their agenda.
Who's coming: Foreign Minister Mourad Medelci
What they want: Counterterrorism help in North Africa. Obama's nuclear strategy hinges on keeping weapons out of the hands of terrorists -- something Algeria, where the terrorist group al Qaeda in the Maghreb is very active -- has historically been engaged in.
Who's coming: President Cristina Fernandez de Kirchner
What they want: Ideally, U.S. support for Argentina's claim on the Falkland Islands. In reality, the Argentines will likely focus on following Chile's lead in drawing down their large stockpile of fissile material.
Who's coming: President Serzh Sargsyan
What they want: U.S. backing in the Turkish-Armenian rapproachement. President Sargysan will hold a rare bilateral meeting with Turkish PM Tayyip Erdogan. U.S. Secretary of State Hillary Clinton and President Obama have been attempting to reconcile bitter adversaries Turkey and Armenia, relations between which grew further complicated in March after a U.S. congressional committee decided to label the World War I-era killing of Armenians a genocide over vociferous Turkish objections.
Who's coming: Prime Minister Kevin Rudd
What they want: To be a major backer of Obama's nuclear policy. Australia has made eliminating chemical and nuclear weapons a foreign-relations priority. With the U.S. health-care vote postponing Obama's trip to the region and Rudd's own health-care debate bruising him domestically, Australia might just want some Obama love.
Who's coming: Prime Minister Yves Leterme
What they want: For Obama to stop snubbing the European Union. The Belgians take their leading role in the EU very seriously and lately, they have not been happy. In February, Obama decided not to attend a U.S.-EU summit in Madrid and this week he failed to invite a single EU representative to the signing of his new START agreement in Prague.
Who's coming: President Lula da Silva
What they want: R-E-S-P-E-C-T. Brazil wants to play a larger role on the international stage and will probably make a point by defending all countries' right to peaceful nuclear energy -- a reference to Iran's nuclear program. Lula has come out against a round of fresh sanctions against the Islamic Republic, arguing that such steps would only radicalize the regime. Although Brazil denies backing Iran outright, Iranian President Ahmadinejad came to Brazilia last year and Lula plans to visit Tehran in May.
Who's coming: Prime Minister Stephen Harper
What they want: A commemorative DVD of the Olympic gold medal-hockey match. Defense arrangements between Canada and the United States are already the closest in the world. Canada's involvement will be, for the most part, symbolic.
Who's coming: President Sebastián Piñera
What they want: To get some props. Chile just delivered the last of its highly enriched uranium to the United States last month, in line with Obama's push to recover the world's unsecured nuclear material. Piñera, who was just inaugurated in March, will also meet with Chinese President Hu Jintao to discuss bilateral trade.