The U.S. military's European Command has warned troops stationed on the continent to avoid wearing military uniforms when off base. The advisory comes three weeks after two airmen were fatally shot at Frankfurt airport.
EUCOM spokesman John Tomassi said Thursday that the guidelines were aimed at keeping soldiers safe and that it would be up to each base's commander to put it into practice.
One of the airmen shot at Frankfurt airport on March 2 was in uniform, the other was not, but they were boarding a bus clearly marked with U.S. military plates.
The 21-year-old Muslim gunman shot two other airmen before German police arrested him. He said he targeted the Americans out of revenge for the war in Afghanistan.