cheap military tech

Drones have existed for decades, initially for reconnaissance or as decoys. In the 90s they were increasingly used as armed combat systems as to reduce human pilot casualties and as a low cost substitute for expensive manned air force. It seems the underlying technology is fairly simple...

Recommend me some realistic choices for the artillery of the armed forces of such small countries. Rules of this discussion: - by countries under 350 000 inhabitants, I mean the likes of Iceland and Luxembourg - the timeframe is post-WWII, so pick the models accordingly (you can mention ideas...