KINSHASA, Congo — Millions of war-weary Congolese choose the nation's first democratically elected leader today amid hopes the historic ballot can end decades of war and despotic rule that have echoed across Africa.

The vast impoverished nation, which borders nine other countries in the heart of the world's poorest continent, is at a crossroads between continued conflict and peace, and its new president will blaze a trail for neighboring countries long involved with Congo.

"Clearly, this is a country of tremendous potential and importance to the continent as a whole. The development of Congo has an impact on all of Africa: north, south, east and west," said U.S. Assistant Secretary of State Jendayi Frazer, on hand to witness the vote.

Security and development have been top issues in the run-up to the first multiparty elections for the presidency since Congo gained independence from Belgium in 1960. Voters also will choose a new parliament for the first time since 1965.

Today's vote "marks the beginning of the Congolese people taking control of their own destiny," Frazer told reporters. "The people of Congo are ready to choose their leaders and set their own national course."

The run-up to presidential and legislative elections has not been easy.

Dozens have died in election-related violence that saw rampaging mobs clash with riot police in the capital. One parliamentary candidate in the east fled the country because of shootings.

On Saturday, in the central city of Mbuji Mayi, opposition militants attacked a truck carrying voting materials, setting it ablaze as they shouted "Nobody is going to vote!" and stoned police who fired tear gas.

The half-billion dollar U.N.-supported enterprise is the world body's biggest ever, safeguarded by the largest U.N. peacekeeping force in the world with 17,600 troops. Congo has been at the center of two multinational conflicts that came to be called "Africa's World War."

The European Union also sent a 2,000-strong contingent to Congo and the region to help secure the vote.

In a country rife with poverty and a smashed infrastructure — only 600 miles of paved roads remain after wars and corrupt rule — candidates are trying to channel Congolese anger.

President Joseph Kabila is considered a front-runner in a field of 33 presidential aspirants. He told thousands of supporters Friday he wants to improve conditions for Congolese, including building highways throughout the country and universities in the capital of each province.

That's the hope, too, for the 25 million registered voters among the 58 million people in Congo, one of the world's poorest nations despite its huge natural resources.

The violent eastern region is the site of one of the world's worst humanitarian crises: Aid groups say about 1,000 people are dying every day from strife-induced hunger and disease.

Congolese hope a legitimate leader can plaster over the country's divisions, pump up the economy and bring lasting peace to their nation.

"We need peace, development, justice and no more corruption. We're fed up," said Jean-Pierre Ifoma, a father of eight who like many Congolese is unemployed.

After years of graft-ridden and heavy-handed rule, a free and fair vote alone is unlikely to steer all Congolese away from the gun. A new leader will have to deliver on promises of betterment — and not just to loyalists and ethnic kinsmen.

"For us Congolese, we'll take up arms again because we're against dictatorship," Ifoma said in Congo's decrepit and trash-strewn capital, Kinshasa.

Congo fell into strife almost immediately after it shook off Belgian colonialism in 1960. Decades of civil wars, army looting sprees and coups d'etat followed, with the corrupt, U.S.-backed Cold War-era strongman Mobutu Sese Seko at the helm.

A Rwandan-backed rebellion by Kabila's father, Laurent, chased Mobutu from power in 1997. The next year, a fresh insurgency led by Rwanda eventually divvied up the country into swaths controlled by warlords and drew in the armies of more than half a dozen African nations.

Kabila took power after his father's palace assassination in 2001 and negotiated an official end to the war a year later through a transitional government that made rebel leaders vice presidents. The peace bid is a major selling point for the 35-year-old leader.

Kabila's opponents include two of his four vice presidents: Jean-Pierre Bemba, a former Ugandan-backed rebel leader who once controlled northeast Congo, and Azarias Ruberwa, a Rwandan-backed leader who once controlled much of the east. Veteran politician Etienne Tshisekedi is boycotting the vote.

Ballots are pages long and have been shipped to 49,700 polling stations around the country. Nearly 2,000 international and 46,000 Congolese election monitors will scrutinize the vote.

Counting ballots from remote jungles and villages with no roads or electricity will not be easy, and first-round results may not be known for weeks. If no presidential candidate gains a majority, a runoff between the top two finishers will be held, likely in September.

Contributing: Michelle Faul in Mbuji Mayi, Congo