The letter is from M.P. Kehoe, to Sir Roger Casement (1864-1916). The letter was written during Casement's eighteen month stay in Germany, where he was attempting to gain German support for an Irish rebellion against British rule. The letter refers to Casement's attempts to create an Irish Brigade of Irish-born British army soldiers who were then held as prisoners of war in German camps. It was the camp at Linberg, in the Lahn valley, that was designated for the project. The project was, however, largely unsuccessful and only fifty-six men signed up. In the letter, Kehoe looks to arrange a meeting with Casement. Casement was later arrested in County Kerry having returned to Ireland in a submarine to try and prevent the Easter Rising from taking place as he felt German support was insufficient. He was hanged in London in August 1916.