Sudan: 2,505,810 km2 (967,243 mi2)

Military regimes favoring Islamic-oriented governments have dominated national politics since independence from the UK in 1956. Sudan has been embroiled in a civil war for all but 10 years of this period (1972-82). The wars are rooted in northern economic, political, and social domination of non-Muslim, non-Arab southern Sudanese. Since 1983, the war and war- and famine-related effects have led to more than 2 million deaths and over 4 million people displaced. The ruling regime is a mixture of military elite and an Islamist party that came to power in a 1989 coup. Some northern opposition parties have made common cause with the southern rebels and entered the war as a part of an anti-government alliance. Peace talks gained momentum in 2002-03 with the signing of several accords, including a cease-fire agreement.

   Kazakhstan: 2,717,300 km2 (1,048,877 mi2)

Native Kazakhs, a mix of Turkic and Mongol nomadic tribes who migrated into the region in the 13th century, were rarely united as a single nation. The area was conquered by Russia in the 18th century and Kazakhstan became a Soviet Republic in 1936. During the 1950s and 1960s agricultural "Virgin Lands" program, Soviet citizens were encouraged to help cultivate Kazakhstan's northern pastures. This influx of immigrants (mostly Russians, but also some other deported nationalities) skewed the ethnic mixture and enabled non-Kazakhs to outnumber natives. Independence has caused many of these newcomers to emigrate. Current issues include: developing a cohesive national identity; expanding the development of the country's vast energy resources and exporting them to world markets; achieving a sustainable economic growth outside the oil, gas, and mining sectors; and strengthening relations with neighboring states and other foreign powers.

 

  Argentina: 2,766,890 km2 (1,068,019 mi2)

Following independence from Spain in 1816, Argentina experienced periods of internal political conflict between conservatives and liberals and between civilian and military factions. After World War II, a long period of Peronist authoritarian rule and interference in subsequent governments was followed by a military junta that took power in 1976. Democracy returned in 1983, and numerous elections since then have underscored Argentina's progress in democratic consolidation.

 

  India: 3,287,590 km2 (1,269,009 mi2)

The Indus Valley civilization, one of the oldest in the world, goes back at least 5,000 years. Aryan tribes from the northwest invaded about 1500 B.C.; their merger with the earlier inhabitants created the classical Indian culture. Arab incursions starting in the 8th century and Turkish in 12th were followed by European traders, beginning in the late 15th century. By the 19th century, Britain had assumed political control of virtually all Indian lands. Nonviolent resistance to British colonialism under Mohandas GANDHI and Jawaharlal NEHRU led to independence in 1947. The subcontinent was divided into the secular state of India and the smaller Muslim state of Pakistan. A third war between the two countries in 1971 resulted in East Pakistan becoming the separate nation of Bangladesh. Fundamental concerns in India include the ongoing dispute with Pakistan over Kashmir, massive overpopulation, environmental degradation, extensive poverty, and ethnic and religious strife, all this despite impressive gains in economic investment and output.

 

  Australia: 7,686,850 km2 (2,967,124 mi2)

Australia became a commonwealth of the British Empire in 1901. It was able to take advantage of its natural resources to rapidly develop its agricultural and manufacturing industries and to make a major contribution to the British effort in World Wars I and II. Long-term concerns include pollution, particularly depletion of the ozone layer, and management and conservation of coastal areas, especially the Great Barrier Reef. A referendum to change Australia's status, from a commonwealth headed by the British monarch to a republic, was defeated in 1999.

 

  Brazil: 8,511,965 km2 (3,285,618 mi2)

Following three centuries under the rule of Portugal, Brazil became an independent nation in 1822. By far the largest and most populous country in South America, Brazil has overcome more than half a century of military intervention in the governance of the country to pursue industrial and agricultural growth and development of the interior. Exploiting vast natural resources and a large labor pool, Brazil is today South America's leading economic power and a regional leader. Highly unequal income distribution remains a pressing problem.

   China: 9,596,960 km2 (3,704,426 mi2)

For centuries China stood as a leading civilization, outpacing the rest of the world in the arts and sciences. But in the 19th and early 20th centuries, China was beset by civil unrest, major famines, military defeats, and foreign occupation. After World War II, the Communists under MAO Zedong established a dictatorship that, while ensuring China's sovereignty, imposed strict controls over everyday life and cost the lives of tens of millions of people. After 1978, his successor DENG Xiaoping gradually introduced market-oriented reforms and decentralized economic decision-making. Output quadrupled by 2000. Political controls remain tight while economic controls continue to be relaxed.

 

 United States: 9,631,418 km2 (3,717,727 mi2)

Britain's American colonies broke with the mother country in 1776 and were recognized as the new nation of the United States of America following the Treaty of Paris in 1783. During the 19th and 20th centuries, 37 new states were added to the original 13 as the nation expanded across the North American continent and acquired a number of overseas possessions. The two most traumatic experiences in the nation's history were the Civil War (1861-65) and the Great Depression of the 1930s. Buoyed by victories in World Wars I and II and the end of the Cold War in 1991, the US remains the world's most powerful nation-state. The economy is marked by steady growth, low unemployment and inflation, and rapid advances in technology.

 

 

 Canada: 9,984,670 km2 (3,854,082 mi2)

A land of vast distances and rich natural resources, Canada became a self-governing dominion in 1867 while retaining ties to the British crown. Economically and technologically the nation has developed in parallel with the US, its neighbor to the south across an unfortified border. Its paramount political problem continues to be the relationship of the province of Quebec, with its French-speaking residents and unique culture, to the remainder of the country.

 

  

Russia: 17,075,200 km2 (6,591,027 mi2) 

Repeated devastating defeats of the Russian army in World War I led to widespread rioting in the major cities of the Russian Empire and to the overthrow in 1917 of the 300-year old Romanov Dynasty. The Communists under Vladimir LENIN seized power soon after and formed the USSR. The brutal rule of Josef STALIN (1928-53) strengthened Russian dominance of the Soviet Union at a cost of tens of millions of lives. The Soviet economy and society stagnated in the following decades until General Secretary Mikhail GORBACHEV (1985-91) introduced glasnost (openness) and perestroika (restructuring) in an attempt to modernize Communism, but his initiatives inadvertently released forces that by December 1991 splintered the USSR into 15 independent republics. Since then, Russia has struggled in its efforts to build a democratic political system and market economy to replace the strict social, political, and economic controls of the Communist period. A determined guerrilla conflict still plagues Russia in Chechnya.