Elections throughout the world in 2012 brought several countries to a crossroads as they struggled with the eurozone debt crisis, the formation of post-Arab Spring governments, and recovery from economic malaise. This timeline revisits twelve of the year's most pivotal elections.

Venezuelan President Hugo Chavez took office in 1999 on a populist platform. But three terms into his "socialist revolution," critics say the country increasingly resembles an authoritarian state. This interactive timeline offers a visual account of Chavez's rise to power and the impact of his presidency.

The Council on Foreign Relations's Nigeria Security Tracker, an effort to catalog and map political violence based on a weekly survey of Nigerian and international press. The data presented includes violent incidents related to political, economic, and social grievances directed at the state or other affiliative groups (or conversely the state employing violence to respond to those incidents.)

Since 1945, some major figures have been brought before domestic and international courts to answer to charges including genocide, corruption, and crimes against humanity. This timeline looks at global efforts to hold such leaders accountable and enforce the rule of law.

The quadrennial U.S. presidential nominating conventions are usually dominated by domestic themes. But they have at times been flavored by global economic concerns and national security threats, offering competing Democratic and Republican visions about the United States' role in the world.

Since 1949, U.S.-Sino relations have evolved from tense standoffs to a complex mix of intensifying diplomacy, growing international rivalry, and increasingly intertwined economies.

The year 2011 was marked by the advance of democratic movements in the Arab world and the economic struggle of advanced democracies. It saw unprecedented military operations in Pakistan and Libya and a new U.S. military commitment to the Asia-Pacific region. This interactive slideshow showcases ten momentous developments in 2011 that will likely continue to reverberate.

An interactive slideshow detailing events since the U.S. invasion of Iraq in 2003.

This interactive map visually plots global outbreaks of measles, mumps, whooping cough, polio, rubella, and other diseases that are easily preventable by inexpensive and effective vaccines. The Global Health Program at the Council on Foreign Relations has been tracking news reports on these outbreaks since the fall of 2008. This project aims to promote awareness of a global health problem that is easily preventable.

An in-depth, multimedia look at the causes and consequences of the global economic crisis that seeks to unravel the questions surrounding the downturn and shed light on its policy implications, drawing on insights from leading thinkers on economics and international affairs.

Iran poses steep challenges to its Middle East neighbors and the world. Explore the country's complex regime structure and controversial nuclear program, and watch experts debate the range of policy options.

This is a special feature presentation from CFR that offers a unique, full-screen experience.

An interactive multimedia feature that maps out and evaluates multilateral efforts to address some of the most difficult international issues.

This CFR Interactive looks at the history of U.S. oil dependence and foreign policy, from the days of the first market, to the crisis of 1970s, to the struggle to balance energy security with environmental concerns.

Pakistan's stability is of great consequence to regional and international security. Examine the roots of its challenges, what it means for the region and the world, and explore some plausible futures for the country.

This is a special feature presentation from CFR that offers a unique, full-screen experience.

The Gulf of Mexico oil spill involving Britain's BP marks the latest instance of an industrial disaster pitting companies from one country against citizens and governments of another. This slideshow provides a chronology of ten major instances in which multinational corporations were involved in industrial incidents, and their legal and regulatory aftermath.

An interactive map of the Horn of Africa.

After decades of decline, nuclear power is increasingly presented as a low-carbon way to meet growing electricity demands. Global construction of new reactors is on the rise, but there still exists an array of obstacles to expansion. This interactive guide explores the past, present, and future of nuclear power, focusing on its unique benefits and risks.

This timeline looks at the history of U.S.-Russia arms control milestones from 1949 to present.

This timeline examines the events that precipitated the U.S. war in Afghanistan as well as the history of the war.

This three-part timeline looks at the history of U.S.-Mexico relations from Mexican independence to present.