I have never been much interested in military history and don’t know much about it but I was quite impressed by the Stachelberg fort my family and I visited in northern Bohemia. The Stachelberg fort was built as part of border defences against Nazi Germany growing in power, it was supposed to become the largest Czechoslovak artillery fort. The fort consists of 12 objects connected by means of extensive underground, the total length of tunnels and rooms situated 25 to 60 metres underground is approximately 3.5 kilometres. Construction of the fort started in October 1937 and should have been finished in 2 years but it was stopped prematurely in October…