German Air Force chief Ingo Gerhartz has ordered troops to tighten communications security after an embarrassing incident in which Russian spies recorded a conference call between four top commanders. A recording of the intercepted conference call, in which the senior officers discussed the possible deployment of Taurus cruise missiles against Russian forces in Ukraine, was published by Russian state broadcaster RT. The incident was deeply embarrassing for the German government. Ukraine has repeatedly requested Taurus missiles from Germany, but German Chancellor Olaf Scholz has so far refused …