On Saturday, Afghans will go to the polls to elect a new president, marking a critical turning point in Afghanistan’s history and our role in the country.

This election comes at an important time in U.S.-Afghan relations, which have been hindered by the erratic and often insulting behavior of President Hamid Karzai. The outcome will present an opportunity for the United States to redefine our relationship with Afghanistan in a way that addresses our shared security concerns and the long-term stability and viability of the country.

Make no mistake, the democratic transition to a new president would not be possible without the last 12 years of sacrifices made by the United States. The Afghan people and Americans owe a profound debt of gratitude to our armed forces, diplomats and U.S. Agency for International Development workers who helped transform Afghanistan from a failed state to fledgling democracy.

The United States has lost more than 2,300 servicemembers in Afghanistan and many thousands more have returned home with grievous injuries. USAID’s partner organizations have lost more than 400 people. We honor the memory of those who paid the ultimate sacrifice in Afghanistan, the sacrifices made by their families and those who will bear lifelong wounds of war.

America’s investment and sacrifice have paid real dividends for the people of Afghanistan. Life expectancy has doubled. Maternal mortality has been cut in half. More than 9 million children are in school, 3.5 million of them girls, compared to 1 million in 2001.