Watch: What is the Good Friday Agreement and why does it matter?
The political commitment from the UK and Irish governments to bring an end to the Troubles in Northern Ireland was agreed in 1998.
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USA Secret weapon or psychological illness: What is Havana Syndrome?
First reported in Cuba five years ago, the illness has links to Cold War Russia and some believe it is the result of a sonic weapon.
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Navy Crossing the Line explained: Centuries-old Navy tradition to gain acceptance of 'King Neptune'
It's a traditional rite of passage and has become key in developing a sense of community among the ship's company.
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Army Know your Army: What military ranks are equivalent to 'private'?
Private is the lowest rank of trained soldiers in the British Army, although there are a number of equivalent ranks.
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Feature Tin Noses Shop: The sculptor who made masks for the mutilated faces of WW1
The French referred to these WWI wounded veterans as having 'gueules cassées' or 'broken faces'.
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RAF Watch: Why does the military burn pianos?
The unusual tradition is believed to originated as a way for personnel to honour fallen pilots.
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USA AUKUS: Why's Australia getting nuclear-powered subs?
The UK, US and Australia have agreed a new defence pact which will see the three countries work closely together and share technology.
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Feature Operation Pluto as told by a D-Day veteran
How an oil pipeline ensured allied victory in the Second World War
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Feature Reporting From Hell: The journalists who witnessed the D-Day Landings first-hand
The civilians who risked their lives to bring the brutal truth of war to the Homefront
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History Was this the shortest ever war in military history?
The conflict is thought to have lasted as little as 38 minutes or as long as 45...
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Afghanistan Watch: Who Are ISIS-K?
President Joe Biden said this week the US knew the group was "seeking to target" Kabul airport and attack allied forces and civilians.
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Feature The machine gun submerged underwater for 73 years that 'could still fire'
The Vickers Gas Operated .303" machine gun, or Vickers K, is on display at the Pembroke Dock Heritage Centre
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Army Afghanistan: All You Need To Know About 16 Air Assault Brigade
About 600 troops from 16 Air Assault Brigade have deployed to Afghanistan to evacuate Britons and ex-British staff.
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Afghanistan Watch: Who Are The Taliban - And Why Are They So Feared?
Since it was announced US troops would withdraw by 31 August, the Taliban have taken control of large areas of Afghanistan.
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Technology Challenger 3: Could Tank Upgrades Be Cancelled Like Warrior's?
Britain's main battle tank requires similar changes to the armoured vehicle programme recently put in reverse.
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Feature Watch: 5 Unusual Places Military Artefacts Have Been Found
Here are some of the more unique military finds in unexpected places - are there any others you can think of?