This is a wonderful idea - and makes me all choked whenever I hear of it.
It is an event happening during September, October, and November 2014 to mark 100 years since the beginning of World War One. Every evening, the Last Post will be played at the Tower of London, and the names of soldiers who died in the War will be read out. (You write in and nominate names.)
Today I submitted the names of Livingstone MURCH, Angus MURCH (his brother), Eli BALL, and Walter Harold BALL (his brother). The MURCHes were my 1st cousins 4 times removed on my father's side of the family, and the BALL brothers were my great-uncles on my mother's side.
The moat itself is being filled with 888,246 red ceramic poppies (one for every death in the British forces), and, even at the start was impressive: