The work is mainly aimed at protecting soldiers, though the same techniques could help civilians.
Many officials argue that existing treaties already protect American soldiers.
Colombia already had a 1974 treaty protecting American soldiers from criminal charges.
Pentagon officials say that despite the shortcomings, their efforts to protect soldiers have saved many lives.
Thermal camouflage helps protect soldiers from people who are using night vision technology.
The testudo was used to protect soldiers from all types of missiles.
It also reserved "the right to protect our citizens and soldiers against aggression".
The network would transmit the battlefield information intended to protect soldiers.
The primary reason for secrecy surrounding each visit, they said, has been to protect soldiers from terrorist attack.
The shrine is dedicated to the gods who protect sailors and soldiers.
