WASHINGTON – More than two dozen world leaders will join President Obama in an extraordinary weekend of back-to-back summits to tackle Europe’s mounting economic woes and solidify plans for winding down the war in Afghanistan.

The Group of Eight economic summit and the national security-focused NATO meeting will be infused with politics from every angle. For Obama, the summits are a unique election-year opportunity to show leadership on the world stage without having to leave the U.S.

But with some new faces around the conference tables, Obama and other leaders will face the stark reminder of the political turmoil from Asia to Europe that cost several of their old counterparts their jobs.

Since late 2011, public frustration with Europe’s debt crisis has led to the ouster of leaders in Italy, Spain, Greece and France. Two other members of the G-8, Britain and Japan, have had leadership shake-ups since Obama took office.

Obama is fighting for his own job in a campaign expected to hinge on the economy. He has had the good fortune of being able to hold both summits this year in the U.S., allowing him to tailor the meetings around his election-year messages of expanding the economy, creating jobs and ending the war

The summit locations rotate annually for each organization.

Leaders from the world’s eight leading industrialized nations arrive Friday for meetings at Camp David, the wooded presidential retreat in Maryland’s Catoctin Mountains. Immediately following the G-8 summit, Obama and most of the other leaders will fly to Chicago Saturday evening to join other NATO heads of state.

Analysts expect Obama to continue a path of quiet diplomacy, prodding European leaders to find a way out of the economic turmoil that could rattle U.S. markets.

“This is a euro-crisis summit, it will be dominated by the crisis,” said Heather Conley, director of the Europe Program at the Center for Strategic and International Studies, a Washington-based think tank. “There’s a complete understanding that in a worst-case scenario, should the European crisis begin to rapidly deteriorate, the impact on the U.S. economy six months before a presidential election has profound implications for our economy and for our elections.”