Austria's attack threatened to disturb the balance of power, because at the time the continent was divided into four groups: The close alliance of the central powers--Germany, Austria and Italy--referred to as the Triple Alliance or Dreibund; the Triple Entente, or understanding between Great Britain, France and Russia; the smaller group whose neutrality and integrity had been guaranteed, or at least recognized--Belgium, Denmark, Holland and the Grand Duchy of Luxembourg, sandwiched in between Germany, France and Belgium, together with Switzerland. The fourth group included the Balkan nations: Bulgaria, Servia, Montenegro, Greece, Turkey and Roumania, all drawn close to Russia; Norway and Sweden, and the Iberian nations, Spain and Portugal. The increase in the power of one of these groups would at any time have been sufficient to precipitate a war, but in the movement of Austria against Servia there entered a racial element. There was a threatened drawing of another Slavonic peoples into the Teutonic system. Besides this, the action let loose the flood of militarism which civilization had been holding in check. With this situation in mind, it is easy to understand how Germany could precipitate a world conflict by attempting to keep open the way to the near East, and controlling the markets as against Britain, France and Russia. Back of all this was the question of commercial supremacy, Germany showing her intention of keeping the way open to the near East and dominating the markets as against Britain, France and Russia. Russia could not stand by and see one of her Slavonic wards crushed, and France, which held the Russian national debt, prepared to support her debtor, whereupon Germany, threatened on both sides, struck. In doing so the Kaiser ignored the rights of the small neutral states, invaded Belgium and brought his armies within threatening distance of England. France prepared to defend her country against Germany, and England, alarmed by the move of Germany and sympathizing with Belgium, struck back to avert the disaster which she felt must follow the German movement, which had been threatening for years. REGARDED EACH OTHER WITH SUSPICION. All attempts to maintain a balance of power between the European countries were from time to time jeopardized by various developments. The elements in the continental group struggled against each other, and the Nations, while seemingly at rest, regarded each other with suspicion. One of the underlying forces that the world knew must at some time be felt was of racial origin. The historical explanations of the war would involve the retelling of almost everything that has happened in Europe for more than a century.