War bonds are debt securities issued by a government to finance military operations and other expenditure in times of war without raising taxes to an unpopular level. They are also a means to control inflation by removing money from circulation in a stimulated wartime economy. War bonds are either retail bonds marketed directly to the public or wholesale bonds traded on a stock market. Exhortations to buy war bonds have often been accompanied by appeals to patriotism and conscience. Retail war bonds, like other retail bonds, tend to have a yield which is below that offered by the market and are often made available in a wide range of denominations to make them affordable for all citizens.

Reginald McKenna was a British banker and Liberal politician. His first Cabinet post under Henry Campbell-Bannerman was as President of the Board of Education, after which he served as First Lord of the Admiralty. His most important roles were as Home Secretary and Chancellor of the Exchequer during the premiership of H. H. Asquith. He was studious and meticulous, noted for his attention to detail, but also for being bureaucratic and partisan.