As it happens, Belgium and the Netherlands recently changed (a small part of) the border for exactly that reason: https://www.theguardian.com/world/2015/dec/30

As it happens, Belgium and the Netherlands recently changed (a small part of) the border for exactly that reason: https://www.theguardian.com/world/2015/dec/30/belgium-and-the-netherlands-exchange-land-because-it-makes-sense https://www.theguardian.com/world/2015/dec/30/belgium-and-th...