Blimey Joey - before free movement there were borders for example between France and Belgium and Holland and Germany - these were manned by customs and police, not the military. Used to make holidays exciting when I was growing up.
Are you really saying a border is only hard if it has soldiers?
The Hodos/Bayansenye border crossing between Hungary and Slovenia (2007).
The checkpoint at Barragem de Saucelle straddling Portugal and Spain (2005).

This checkpoint is located in Melgaco at the border between Portugal and Spain.

The border passing at Colle del Piccolo San Bernando between France and Italy (2007).

The checkpoint at Tunnel Routier du Fréjus on the border between France and Italy (2005).

The Warneton border crossing between France and Belgium (2008).

The Mulhouse checkpoint on the border between Germany and France (2005).
The checkpoint located in Aachen, Germany, on the border between Germany and Belgium (2007). Photos by Josef Schulz