The Imperial Federation was a proposal made around the turn of the twentieth century, which would basically see the British Empire replaced with a more federal state, with all the (white) members sending representatives to a central Federal Parliament in London. This Federal Parliament would chiefly be concerned with defence and foreign affairs, leaving the individual members largely self-governing in domestic affairs. Historically the idea never got off the ground, but if it had been implemented, how long would it last? Would it still be around today? And what effects would the existence of such a power have had on international relations over the last century?