But of all the countries affected by Chernobyl, Russia had the largest contaminated area, close to 60,000 square kilometers. Given the country’s size, that area constituted only 1.5 percent of its territory, with 1 percent of its population. All three countries had to bear the cost of resettlement and deal with the health problems caused by the disaster, not only among those residing in or resettled from the contaminated areas, but also among the hundreds of thousands of liquidators exposed to high doses of radiation in the first days, weeks, and months after the explosion