The world's got financial problems, public health problems, and people are openly fighting one another in Pakistan, Afghanistan, Iraq, and elsewhere.
I saw a story several weeks ago out of the UK. Someone found a sign from World War II that was prepared in case the Germans ("the enemy" as the WWII Germans are referred to in the UK today) marched into the UK. The 1939 sign had one short sentence: Keep calm and carry on.
Having lived in the UK, in Exeter in Devonshire, I can appreciate the sentiment in this sentence from a British perspective.