Civil engineers from a joint assessment team test slabs of concrete on the runway at Lakehurst Naval Air Engineering Station, N.J., to evaluate its strength prior to establishing a joint task force-port opening March 25, 2012. The Kentucky Air National Guard's 123rd Contingency Response Group from Louisville, Ky., and the 690th Rapid Port Opening Element from Fort Eustis, Va., joined forces to form the JTF-PO at an Eagle Flag exercise at Joint Base McGuire-Dix-Lakehurst, N.J., through March 30.