I filled my car up with diesel in Holland on Tuesday (it's all right, it is a diesel car). The price was €1.38 a litre. It's a new Mercedes E350 and I'm getting well over 600 miles on a tankful. Anyway, we drove through the border with Germany at over 70mph. We've all come a long way in the last 65 years, but as Theodore Rooseveldt said:
'speak softly and carry a big stick'.
There's also a roman proverb: 'Si vis pacem para bellum' - 'if you wish for peace, prepare for war'.