What is the US Army doing in Panama? A bit of everything.

Muted American flag patches on the right shoulders of camouflage-clad men and women in the jungle are one sign of an expanding partnership between the U.S. and Panama. American optometrists in the country’s Darién Province are another. U.S. military salvage and dive teams training near the Panama Canal offer a third. As Washington shifts its attention toward the Western Hemisphere, a reinvigorated jungle school is just one part of the evolving U.S. military presence in Panama . More than 20 years after the U.S. turned over its bases to the Central American country, the partnership offers a…