️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ They used barrack buster mortars and remote controlled IEDs.<unk> They used barrack buster mortars and remote controlled IEDs.<unk> They used barrack buster mortars and remote controlled IEDs.<unk> Members of the IRA developed and counter-developed devices and tactics.<unk> Members of the IRA developed and counter-developed devices and tactics. Bombs became highly sophisticated, featuring anti-handling devices such as a mercury tilt switch or microswitches.<unk> Bombs became highly sophisticated, featuring anti-handling devices such as a mercury tilt switch or microswitches. <unk> <unk> <unk> ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ <unk> <unk> <unk> <unk> <unk> <unk>
1984 Brighton hotel bomb attack. Initially, bombs were detonated either by timer or by simple command wire.<unk> Initially, bombs were detonated either by timer or by simple command wire.<unk> Initially, bombs were detonated either by timer or by simple command wire. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Initially, simple servos from radio-controlled aircraft were used to close the electrical circuit and supply power to the detonator.<unk> Initially, simple servos from radio-controlled aircraft were used to close the electrical circuit and supply power to the detonator.<unk> Initially, simple servos from radio-controlled aircraft were used to close the electrical circuit and supply power to the detonator. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk> <unk> <unk> <unk> <unk> <unk>