Ep 14. Bunker Busters

In ancient times if your army had to take on a huge stone castle there was only one option: bunker busting. This included taking weapons like the crossbow and the Trebuchet! Today the siege tradition continues, with our military using high-explosives to blow the bad guys out of their foxholes. Gunny visits today's bunker busters--military engineers who bust under, over, and into enemy strongholds.