I bought these at Foyles a few hours before my plane was due to depart, and had them mailed to me. Not necessarily the cheapest way to go, but I was in a hurry!
Jeremy Black. Rethinking Military History. Abingdon and New York: Routledge, 2004. Probably nobody is better qualified to write a book with this title -- I've only got 60 or 70 books to go before I've got his entire opus.
Bob Clarke. Britain's Cold War. Stroud: The History Press, 2009. Looks like a useful overview of, well, Britain's Cold War -- civil defence, the American presence, the Royal Observer Corps, and so on.
Sebastian Cox and Peter Gray, eds. Air Power History: Turning Points from Kitty Hawk to Kosovo. Abingdon and New York: Frank Cass, 2002. A collection of essays on diverse topics by historians such as Tami Biddle, John Ferris, James Corum and John Buckley.
Michael D. Gordin. Five Days in August: How World War II Became a Nuclear War. Princeton and Oxford: Princeton University Press, 2007. Having said I needed to add this book to my reading list, I couldn't not buy it when I saw a copy!
Tsuyoshi Hasegawa. Racing the Enemy: Stalin, Truman and the Surrender of Japan. Cambridge and London: Belknap Press, 2005. An important and controversial book which I seem to run into frequently in various threads and blogs, so again something worth reading so I can stay abreast of the debate.
Samuel Hynes. A War Imagined: The First World War and English Culture. London: Pimlico, 1992. Another gap in my library filled. As much about the fifteen years after the war as the war itself.