
When Army officials voice concerns that legacy combat vehicles are nearing the end of their functional lives, that incremental upgrades are yielding diminishing returns, they are not talking about the M1 Abrams main battle tank.The Army on Oct. 4 took delivery of the first six M1A2 system enhancement package version three (SEPv3) tanks, which feature communications, reliability, sustainment, fuel efficiency and armor enhancements.Not only is the SEPv3 another in a long line of upgrades the tank has received since its…