The 2012 London Olympics is the largest and most expensive security operation in recent British history, involving 10,000 police officers and 13,500 members of the armed forces at a cost of around £1bn. As the UK's capital gears up to meet potential threats that could come from anywhere, including cyberspace, we round up the technology used to keep the Games safe, and ask a cybercrime expert why cyber security is just as important as physical security.
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Army
Helicopter gunships have become almost instantly identifiable following their frequent use in recent combat zones such as Iraq and Afghanistan. We identify the top multirole attack helicopters being used around the world, and take a closer look at the US Army's Apache helicopter and the Eurocopter Tiger built for the French and German Armies.
Read more in the army section of this issue.
Air force
The potential danger to today's fighter aircraft has grown as unmanned drones and advanced surface-to-air missiles feature alongside enemy pilots in aerial warfare. We take a look at the latest air-to-air missiles, which are an essential element for fifth-generation fighters. We also feature the A-Darter air-to-air missile, which is being developed in South Africa and is expected to be ready for production next year.
Read more in the air force section of this issue.
Navy
Underwater communication is restricted by the depth at which a vessel can receive information and the speed at which it can travel. We explore a new technique called Quantum Key Distribution, which uses the law of physics to offer secure exchanges without sacrificing speed or depth. We also investigate how a networked system of automated vehicles can be used to protect vast stretches of coastline.
Read more in the navy section of this issue.

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Advances in neuroscience offer the potential of mind-controlled weapons and performance enhancement, but are extra-sensory enhanced warfare techniques mere science fiction? We ask the experts how progress in the understanding of the human mind could help to protect future soldiers.
We also look at cutting-edge spatial awareness technology for soldiers, report on progress of the US Air Force's Deployable Radar Approach Control system, and investigate the Asian race for early warning missile detection capabilities.
Moreover, we catch up with the latest developments in the world's aircraft carrier programmes and find out how the UK and Argentine naval forces have developed since the Falklands conflict.

Engineers mounted a 125mm smoothbore gun onto the MBT 3000. The main gun can fire APFSDS, HEAT and HE shells and gun launched missiles with a maximum missile range reaching 5,000 meters.
MBT 3000 also features a 12.7 mm anti-aircraft machine gun and a 7.62mm coaxial machine gun. Tankers can also fire from 8 76mm smoke grenade launchers and 4 76mm shrapnel grenade launchers.
It carries 38 rounds of main ammunition with a loading speed of eight rounds per minute with 22 rounds on the loader. An un-cooled thermal imagery is installed for the driver while a second generation cooled thermal imager is provided for gunner and the tank commander.
The engine is a water-cooled turbocharged electronic-controlled diesel engine with 1300 horsepower.
The tank is fully digitized with inertial navigation and GPS. Engineers also built a new fire extinguishing and explosion suppression system.