1. 
   Greif
   The Greif is a German Albatros class fast attack missile craft of 398 tons displacement commissioned in 1976. She is powered by four MTU 16V956 TB91 diesels providing a top speed of 40 knots and a range of 1300 miles at 30 knots. She carries a crew of 40 including four officers. Armaments consist of...
   Found op http://www.probertencyclopaedia.com/browse/RG.HTM
   
   
2. 
   Greif
   Operational code name for the dropping of English-speaking German Troops wearing American uniforms behind the Allied lines in the Ardennes, prior to Hitler's last offensive in the west
   Found op http://www.secondworldwar.co.uk/glossg.html
   
   
3. 
   Greif
   Griffin; dropping of English-speaking troops wearing American uniforms behind the Allied lines in the Ardennes, prior to the Battle of the Bulge.
   Found op http://en.wikipedia.org/wiki/Glossary_of_German_military_terms
   
   
4. 
   Greif
   [brigantine] "Greif" is the name of a brigantine, owned by the town Greifswald in Mecklenburg-Vorpommern. The ship is used as a training ship for maritime youth education. In the GDR the ship was named from 1951 till 1990 after the first president Wilhelm Pieck. ...
   Found op http://en.wikipedia.org/wiki/Greif_(brigantine)
   
   

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