Black Russian Terrier
The Black Russian Terrier was developed as a guard dog in Russia at the end of WW2 to work for the defence forces. He’s a big, robust dog who is highly trainable and aggressive. The dog of that era doesn’t look quite the same as today’s Black Russian Terrier.

Today’s dog is very intelligent and loves his family. He’s fiercely protective of them because of his inbuilt instincts and remains reserved when around strangers. He has an excellent memory for both good and bad things. His coat doesn’t need a lot of attention but he must have regular exercise. He’s 26 – 30 inches high.

Photo: By Guidopatek (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons