When and when not to Defend the Realm

4 August 1914: Britain declares war on Germany. Germany didn't want it. Why would they? Germany was already at war with Russia and France.... 4 August 2020: England is being invaded by small boats crossing the Channel with illegals (mostly young men who were in France illegally where they could have claimed asylum). But the British Goverment does nothing to prevent it. When we weren't being invaded we react and when we are we don't.