The US State Department has backed a potential sale of AGM-114R Hellfire missiles to Singapore, valued at US$22.3 million, in a deal it said would strengthen the city state’s defences, a key US strategic partner in Asia.The department on Tuesday said the sale would include 67 Hellfire missiles – a type of precision-guided, air-to-ground missile – as well as spare parts and support equipment. Lockheed Martin will be the principal contractor.“This proposed sale will support the foreign policy...