Shoot and scoot. That’s the strategy behind the newest self-propelled howitzer in the U.S. arsenal. And it’s all made in the U.S.A. Elbit Systems, partnering with Oshkosh Defense, unveiled Sigma in a rare public appearance at this week’s AUSA Global Force Symposium and Exhibition. “We’re launching the Sigma howitzer with our friends at Oshkosh,” said […]