The land-robot “teleMAX” of German company telerob stands next to soldiers during a trial at the German army base on May 18, 2010 in Hammelburg, Germany. ELROB provides an overview of the current state of affairs in European unmanned system technology and to evaluate commercial off-the-shelf products for military use. It is to show what is feasible in robotics, to support technological developments in Europe, and to find solutions for the current military challenges. (Photo by Ralph Orlowski/Getty Images)

The land-robot “Gecko” of German company Base Ten drives during a trial at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)

A driver operates a radio-controled land-robot “Gecko” of German company Base Ten drives during a trial at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)

The land-robot “MACE 2” of British company Mira stands at an exibition during a trial at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)

The land-robot “Scorpion V2” of U.S. company Macro stands at an exibition during a trial at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)

Soldiers walk past a land-robot “Cheatah VTE 3600” of Netherlands company Parosha during an exibition during a trial at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)

Students of the distance university of Hagen work on their air robot zeppelin during a trial at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)

A “Armadillo M-UGV” ground robot of U.S. company Macro USA drives during an exibition at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)

The aerial robot “Maja” of German company Bormatec stands on the P-09 BigAnt transport platform during a trial at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)

A “Eye Drive” ground robot of German Glueckauf Logistik company stands exibited at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)

The gripper arm of the ground robot “TEL 620 teodor” of German Telerob company holds a dummy mine during a demonstration at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)

A “MX 4” ground robot of French Versailles University drives during a trial at the German army base on May 18, 2010 in Hammelburg, Germany. (Photo by Ralph Orlowski/Getty Images)