British War Medal:

The British War Medal 1914-1920 Authorised in 1919, was awarded to eligible service personnel and civilians alike. Qualification for the award varied slightly according to service. The basic requirement for army personnel and civilians was that they either entered a theatre of war, or rendered approved service overseas between 5 August 1914 and 11 November 1918. Service in Russia in 1919 and 1920 also qualified for the award.

6,610,000 were issued.
The combination of a Star, Victory Medal and War Medal was fairly commonplace (more than 2.5m trios were issued). This combination earned for itself the nickname, "Pip, Squeak and Wilfred" from the characters that appeared in a comic strip which first appeared in the "DAILY MIRROR" newspaper on the 12th of May 1919, about the same time as the medals were being issued.

The British War Medal was nicknamed "SQUEAK". The medal is worth between 15 - 20 for the 'silver' and between 75 - 100 for the rarer 'bronze' medal (110,000) issued to Chinese, Indian and Maltese labour battalions. 

The British Medal and Victory Medal pair are more commonplace (3.2 million pairs were issued) as more men and women served in the Army after 1st January 1916. The pair was often called "Mutt and Jeff" after the popular cartoon characters originally from the San Francisco Chronicle.