Book excerpt: The T-34-85 tank is one of those rare weapons that have remained in service for more than half a century. First introduced in 1944, it has seen combat in nearly every corner of the globe. Steven Zaloga and Jim Kinnear look at this long-serving tank at length. Although long obsolete in Europe, it has proven a reliable and potent weapon in many Third World conflicts, and is still in service with more than a dozen armies around the world.