All London personnel have been told not to wear their uniforms off base. But the threat level at military bases has not been increased.
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People who eat diets high in sugar could be at an increased risk of developing Alzheimer's disease, a new study has found.
Special forces launched an early morning raid on Thursday to drive the so-called Islamic State away from a key military base.
The Government has faced repeated calls to suspend arms sales to Saudi Arabia after "repeated and serious breaches" of alleged abuses.