The threat to naval facilities from combat frogmen and swimmer delivery vehicles (SDVs) has existed since their use by both sides during the Second World War.rnToday, in the context of homeland security, the target set potentially at risk from asymmetric threats has expanded to include power stations, oil and gas installations, desalination plants and even 'mega-yachts' owned by wealthy individuals. In addition, forward-deployed naval units are often perceived as vulnerable and require protection from these threats.
展开▼
