BAGHDAD — The ideal, soldiers say, is that no one in Iraq should have to go outside the wire in anything less than M-1114 factory up-armored Humvee. The reality is, little more than 20 percent of Humvees in Iraq are armored, and some soldiers trust their survival to a few sandbags and steel sheets. Until the ideal is attainable, Master Sgt. Dennis P. Lichtenberg is striving to create the best-protected Humvees short of an M-1114. Lichtenberg has invented a system he calls “The Lick Kit,” a play on his nickname “Lick,” pinned on by fellow reservists from the Pensacola, Fla.-based...