This link from my friend Olli-Pekka...

For years robots have been used in Northern Ireland to make safe car bombs, and have proved very effective and saved many lives. Americans are now using robots to search caves in Afghanistan, and recently a robot saved the lives of US soldiers when it detonated a roadside bomb in Iraq. But if iRobot has its way, future wars may be fought with robots leading the way, hopefully saving many lives. iRobot has developed several models, which are small enough to be carried in backpacks, and can be operated by remote control via a laptop.

Quote: "Urban warfare is dirty business, as the Army's experience in Fallujah, Iraq, shows. Soldiers piling into narrow doorways are particularly vulnerable to gunfire, and snipers are hard to spot once their shots begin echoing throughout apartment blocks. But soldiers in the future, the Army hopes, will be able to pull SUGVs [Small Unmanned Ground Vehicle] from their backpacks and drop the robots through the windows of buildings where enemies may be hiding.

My friend Olli-Pekka noted a distinct similarity between the above quotation (and this video), and a passage in Joel 2, which describes the army that will fight (I take it against Israel) in the day of the Lord. 

Joel 2:7-9
They shall run like mighty men; they shall climb the wall like men of war; and they shall march every one on his ways, and they shall not break their ranks: Neither shall one thrust another; they shall walk every one in his path: and when they fall upon the sword, they shall not be wounded. They shall run to and fro in the city; they shall run upon the wall, they shall climb up upon the houses; they shall enter in at the windows like a thief. 

Source Wired