Rhein-Main Air Base, Germany--Gateway to Europe Rhein-Main Air Base, Germany, long known as the "Gateway to Europe", has become a marshaling point for the NATO Enabling Force of Operation Joint Endeavor. Enabling forces are moving into the Croatia, Bosnia and Herzegovina, and Slovenia theaters of operation to prepare entry points for the main Implementation Force. SHARE IMAGE: Download Image: Full Size (0.03 MB) Photo By: VIRIN: 764025-H-ZKI64-757.jpg Photo Gallery