Indy is answering your questions again and this week explains, among other things, how gas shells worked and what role Spain played during the war. You can always ask more questions in the comments, on Facebook or on Twitter and Indy will gladly answer them in on of the next episodes.

Indy is answering your questions again. In this episode of OUT OF THE TRENCHES he is explaining how airplanes got armed with machine guns and what was the bloodiest battle of WW1.