The United Kingdom opens all combat roles in the British Armed Forces, including special forces, to women for the first time.
The Organisation for the Prohibition of Chemical Weapons states it agrees with UK authorities on their analysis of the identity of the toxic chemical used against the Skripals. The UK identifies the substance as a Novichok nerve agent, of a type developed by Russia.
The first of seventy British military personnel arrive in Somalia to help combat the threat of Islamist militants. The remaining troops will join the United Nations peacekeepers and AMISOM soldiers in countering Al-Shabaab later on this year. This deployment is part of a greater effort by the United Kingdom to target terrorism.
Hundreds of thousands of people go on strike across the United Kingdom in relation to worsening pension conditions being discussed by the government and opposition, while MPs from both the government and opposition condemn them for going on strike.