Ukraine

The volunteers - some in their 70s - are helping educate Ukrainians about unexploded munitions and training Ukrainian forces to disarm them.

The U.S. Transportation Command has the primary responsibility to load planes, ships, and other vehicles with supplies bound for Ukraine.

The State Partnership Program has quietly become a powerful tool for diplomacy and modeling U.S. values around the world.

While the impeachment case centers on President Trump's handling of military aid to Ukraine, U.S. troops deployed in Ukraine say their mission hasn't…