Indy is answering your questions again. This time we are dealing with the role of airplanes and cavalry in World War 1. If you want your question answered in OUT OF THE TRENCHES, post your question in the comments, on Twitter or on Facebook.

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.