SMC is using these authorities to buy five missile-warning satellites from Lockheed Martin and Northrop Grumman. US - based Lockheed Martin has been awarded a contract worth $ 2.9bn to manufacture new satellites able to warn of incoming missile attacks . The US Air Force issued the contract in order to develop new early warning systems which are less vulnerable to cyber attacks from the likes of China and Russia . The company will complete the development of the new systems by 2021 .
US - based Lockheed Martin has been awarded a contract worth $ 2.9bn to manufacture new satellites able to warn of incoming missile attacks . The US Air Force issued the contract in order to develop new early warning systems which are less vulnerable to cyber attacks from the likes of China and Russia . The company will complete the development of the new systems by 2021 .