I have never heard of Interac and I don't know what it is. Please enlighten me.
I have learned so much about the military by taking NJROTC (Navy Junior Reserve Officers Training Corps), watching the History and Discovery channels, and by going to Janes.com.
Also I have many good teachers in my time who have given me valuable insight. If you pay attention to your teachers (not to say that you don't) you will learn a lot.
Janes is the foremost source in the world for information about militaries. You should go there and check it out some time. You could learn many things from that site.
http://www.janes.com/