NASA recently completed flight tests to prepare for a multi-year airborne campaign to study humidity and chemistry of the tropical tropopause.

This proposal was opposed by Lyda Conley and her two sisters in Kansas City, who launched what became a multi-year campaign to preserve the burying ground.

Jon Haber, a spokesman, called it the "first phase of a multi-year campaign."

Today, as a result of this multi-front, multi-year campaign, Iran and North Korea have been almost entirely cut off from much of the world's largest financial sectors.

It marked the beginning of a multi-year campaign led by The Alliance for Climate Protection to move individuals, corporations and governments to take action.

Sea Shepherd engaged in a multi-year campaign against drift netting practices, which it calls a way of strip mining the ocean's wildlife.

This most recent film profiles an Anhui Province farmer's multi-year campaign to halt the poisoning of his village water by a nearby factory.

The Vietnam Veterans Memorial Fund has embarked on a multi-year campaign to secure the nearly $85 million needed.

Over the course of the multi-year campaign, additional phases will be launched for other populations at increased risk.

After a multi-year legislative campaign including community and university involvement, the FIU Medical College was established.