The United States military needs combat tunneling robots for urban warfare settings such as Iraq. International terrorists, Iranian Insurgents and Enemy Combatants will often hide in homes or buildings. And the United States military cannot just go around blowing up buildings in homes because there might be innocent civilians inside.
One trick of international terrorists used to hide within civilian populations and use them as human shields. Also there are issues when special operations are conducted in the case of an American hostage situation. Combat tunneling robots would be an ideal application for this situation.
This subject recently came up in an online think tank and one member asks what about;