According to archaeological evidence, the area has been inhabited by the Aleuts since the last ice age.[citation needed] Early contact was with Russian fur traders who sought sea otters in these islands. Whaling, fishing and cannery operations brought an influx of Scandinavian and European fishermen in the early 1900s. During World War II, the area was a strategic military site for the Aleutian Campaign, and many locals were evacuated to Ketchikan.