"We are now in a position of self-defence, and necessity knows no law! (Cries of “Quite right.”) Our troops have occupied Luxembourg, perhaps they have already entered Belgium. (Loud applause.) That is a breach of international law. The French Government, it is true, had declared in Brussels that they would respect Belgian neutrality so long as their opponent respected it. But we knew that France stood ready to invade it. (Cries of indignation.)"
January 1, 1970
https://en.wikiquote.org/wiki/Theobald_von_Bethmann-Hollweg