<sod>The treaty did not entirely end conflicts arising out of the Thirty Years' War.  Fighting continued between France and Spain until the [[Treaty of the Pyrenees]] in 1659.  Nevertheless, it did settle many outstanding European issues of the time.  Some of the principles developed at Westphalia, especially those relating to respecting the boundaries of sovereign states and non-interference in their domestic affairs, became central to the world order that developed over the following centuries and remains in effect to this day ({{As of|2016|lc=y}}). In several parts of the world, however, sovereign states emerged from what was once imperial territory only after the post-[[World War II]] period of [[decolonization]].<ref name = "kiss"/> More significantly, one of major principles—the [[balance of power]]—was undermined in the Twentieth century. In the aftermath of the Second World War, the multipolar balance was transformed into bipolar. One of main victims of the new imbalance of power managed to state: Without Wehrmacht, a “wave would have swept over Europe that would have taken no care of the ridiculous British idea of the balance of power in Europe in all its banality and stupid tradition—once and for all.” <ref>‘’Hitler; Speeches and Proclamations’’, ed. Max Domarus, Mundelein: Bolchazy-Carducci Publishers, 2004, vol III, p 2536, </ref> Historian Max Ostrovsky notes that Hitler had said yet before the United States threw its weight into the War. <ref>‘’[[Y = Arctg X: The Hyperbola of the World Order]]’’, Lanham: University Press of America, 2007, p 149.</ref> After the end of the Cold War, the world order turned into unipolar. <ref>[[Charles Krauthammer]], “The Unipolar Moment,” ‘’Foreign Affairs’’, 70/1, (1990/91): p 23-33.</ref><ref> [[William Wohlforth]], “The Stability of Unipolar World,” ‘’International Security’’, 24/1, (1999): p 4-51.</ref><ref> David A., Lake, “Escape from the State-of-Nature: Authority and Hierarchy in World Politics,” International Security, 32/1, (2007): p 47-79.</ref> Two experts on international relations, [[William Wohlforth]] and [[Stephen Brooks]], titled their 2008 book ‘’The World Out of Balance’’. <ref>‘’The World Out of Balance: International Relations and the Challenge of American Primacy’’, Princeton, Princeton University Press.</ref> Instead of the balance of power, the inter-state aggression is checked by the preponderance of power. <ref>[[Melvyn P. Leffler]], ‘’A Preponderance of Power: National Security, the Truman Administration and the Cold War’’, Stanford: Stanford University Press, 1992.</ref> This marks a sharp contrast with the Westphalian principle. According to one theory, the persistent balance of power between two or more great powers has passed its event horizon and the future belongs to variation of unipolar orders. <ref>‘’[[Y = Arctg X: The Hyperbola of the World Order]]’’.</ref><eod>
<sod>The treaty did not entirely end conflicts arising out of the Thirty Years' War.  Fighting continued between France and Spain until the [[Treaty of the Pyrenees]] in 1659.  Nevertheless, it did settle many outstanding European issues of the time.  Some of the principles developed at Westphalia, especially those relating to respecting the boundaries of sovereign states and non-interference in their domestic affairs, became central to the world order that developed over the following centuries and remains in effect to this day ({{As of|2016|lc=y}}). In several parts of the world, however, sovereign states emerged from what was once imperial territory only after the post-[[World War II]] period of [[decolonization]].<ref name = "kiss"/> More significantly, one of major principles—the [[balance of power]]—was undermined in the Twentieth century. In the aftermath of the Second World War, the multipolar balance was transformed into bipolar. One of main victims of the new imbalance of power managed to state: Without Wehrmacht, a “wave would have swept over Europe that would have taken no care of the ridiculous British idea of the balance of power in Europe in all its banality and stupid tradition—once and for all.” <ref>‘’Hitler; Speeches and Proclamations’’, ed. Max Domarus, Mundelein: Bolchazy-Carducci Publishers, 2004, vol III, p 2536, </ref> Historian Max Ostrovsky notes that Hitler had said yet before the United States threw its weight into the War. <ref>‘’[[Y = Arctg X: The Hyperbola of the World Order]]’’, Lanham: University Press of America, 2007, p 149.</ref> After the end of the Cold War, the world order turned into unipolar. <ref>[[Charles Krauthammer]], “The Unipolar Moment,” ‘’Foreign Affairs’’, 70/1, (1990/91): p 23-33.</ref><ref> [[William Wohlforth]], “The Stability of Unipolar World,” ‘’International Security’’, 24/1, (1999): p 4-51.</ref><ref> David A., Lake, “Escape from the State-of-Nature: Authority and Hierarchy in World Politics,” International Security, 32/1, (2007): p 47-79.</ref> Two experts on international relations, [[William Wohlforth]] and [[Stephen Brooks]], titled their 2008 book ‘’The World Out of Balance’’. <ref>''The World Out of Balance: International Relations and the Challenge of American Primacy'', Princeton, Princeton University Press.</ref> Instead of the balance of power, the inter-state aggression is checked by the preponderance of power. <ref>[[Melvyn P. Leffler]], ‘’A Preponderance of Power: National Security, the Truman Administration and the Cold War’’, Stanford: Stanford University Press, 1992.</ref> This marks a sharp contrast with the Westphalian principle. According to one theory, the persistent balance of power between two or more great powers has passed its event horizon and the future belongs to variation of unipolar orders. <ref>‘’[[Y = Arctg X: The Hyperbola of the World Order]]’’.</ref><eod>