Show k www N 1 i rn f I 1 defense experiments in panama canal zo zone lie 0 ar 4 ia 0 X 4 V X 41 k W 6 left machine gun armed scout cars being unloaded from a barge at gamboa C Z after transportation from rom gatun galun through the panama canal the army is experimenting in moving cavalry forces and mechanized equipment from atlantic to pacific defense sectors by water because there is no highway across the isthmus right mechanized cavalry brought from gatun galun to gamboa by barge speeds through panama |