Essays On The Thirty Years War Involved

The causes of the Thirty Years War can be traced as far back as the renaissance period. It was during the renaissance that such ideals as secularism, humanism, individualism, rationalism and above all else secularism was first apparent in main stream society (5). The Thirty Years War was one of the most important and bloodiest of the religious wars. An uneasy truce had existed in Germany since the Peace of Augsburg in 1555. This agreement allowed Lutheran and Catholic rulers to determine the religion of their subjects but it did not make any provisions for the inroads of Calvinism. Catholics were alarmed that the Lutherans were gain¬ing conversions and territory in violation of the settlement. Lutherans feared that the Peace of Augsburg would be undermined by Calvinist and Catholic gains. In the early seventeenth century, Germany was divided into the Protestant Union, and the Catholic League. The Protestant Union was supported by the English, French, and the Dutch, while the Catholic League was supported by Spain and the Hapsburg Empire (3).

The Thirty Years War was the first continental war in which all the major European nations were involved. The effects of the War would prove be religious, political, social, and economic turning points for Europe.

The religious settlement at Westphalia confirmed the predominance of Catholicism in southern Germany and of Protestantism in northern Germany. The papacy was denied the right to participate in German religious affairs, a restriction symbolizing the reduced role of the Church in European politics (8). The principle accepted by the Peace of Augsburg of 1555 that Catholic and Lutheran princes could determine the religion practiced in their territory was maintained, and this privilege was extended to include the Calvinists as well. The Austrian Habsburgs had failed in their efforts to increase their authority in the...


This conflict, which redrew the religious and political map of central Europe, began in the Holy Roman Empire, a vast complex of some one thousand separate, semiautonomous political units under the loose suzerainty of the Austrian Hapsburgs. Over the previous two centuries, a balance of power had emerged among the leading states, but during the sixteenth century, the Reformation and the Counter Reformation had divided Germany into hostile Protestant and Catholic camps, each prepared to seek foreign support to guarantee its integrity if need arose.

Thus in 1618, when Ferdinand II, heir apparent to the throne of Bohemia, began to curtail certain religious privileges enjoyed by his subjects there, they immediately appealed for aid to the Protestants in the rest of the empire and to the leading foreign Protestant states: Great Britain, the Dutch Republic, and Denmark. Ferdinand, in turn, called upon the German Catholics (led by Bavaria), Spain, and the papacy. In the ensuing struggle, Ferdinand (elected Holy Roman Emperor in 1619) and his allies won a major victory at White Mountain (1620) outside Prague that allowed the extirpation of Protestantism in most of the Hapsburg lands. Encouraged by this success, Ferdinand turned in 1621 against Bohemia’s Protestant supporters in Germany. Despite aid from Britain, Denmark, and the Dutch Republic, they too lost, and by 1629 imperial armies commanded by Albrecht von Wallenstein overran most of Protestant Germany and much of Denmark. Ferdinand then issued the Edict of Restitution, reclaiming lands in the empire belonging to the Catholic Church that had been acquired and secularized by Protestant rulers.

Only Swedish military aid saved the Protestant cause. In 1630 an army led by King Gustavus Adolphus landed in Germany and, with a subsidy from the French government and assistance from many German Protestant states, routed the Imperialists at Breitenfeld (1631) and drove them from much of Germany. The Protestant revival continued until in 1634 a Spanish army intervened and at Nordlingen defeated the main Swedish field army and forced the Protestants out of southern Germany. This new Hapsburg success, however, provoked France-which feared encirclement-to declare war first on Spain (1635) and then on the emperor (1636).

The war, which in the 1620s had been fought principally by German states with foreign assistance, now became a struggle among the great powers (Sweden, France, Spain, and Austria) fought largely on German soil, and for twelve more years armies maneuvered while garrisons-over five hundred in all-carried out a “dirty war” designed both to support themselves and to destroy anything of possible use to the enemy. Atrocities (such as those recorded in the novel Simplicissimus by Hans von Grimmelshausen) abounded as troops struggled to locate and appropriate resources. Eventually, France’s victory over the Spaniards at Rocroi (1643) and Sweden’s defeat of the Imperialists at Jankau (1645) forced the Hapsburgs to make concessions that led, in 1648, to the Peace of Westphalia, which settled most of the outstanding issues.

The cost, however, had proved enormous. Perhaps 20 percent of Germany’s total population perished during the war, with losses of up to 50 percent along a corridor running from Pomerania in the Baltic to the Black Forest. Villages suffered worse than towns, but many towns and cities also saw their populations, manufacture, and trade decline substantially. It constituted the worst catastrophe to afflict Germany until World War II. On the other hand, the conflict helped to end the age of religious wars. Although religious issues retained political importance after 1648 (for instance, in creating an alliance in the 1680s against Louis XIV), they no longer dominated international alignments. Those German princes, mostly Calvinists, who fought against Ferdinand II in the 1620s were strongly influenced by confessional considerations, and as long as they dominated the anti-Hapsburg cause, so too did the issue of religion. But because they failed to secure a lasting settlement, the task of defending the “Protestant cause” gradually fell into the hands of Lutherans, who proved willing to ally (if necessary) with Catholic France and Orthodox Russia in order to create a coalition capable of defeating the Hapsburgs. After 1630 the role of religion in European politics receded. This was, perhaps, the greatest achievement of the Thirty Years’ War, for it thus eliminated a major destabilizing influence in European politics, which had both undermined the internal cohesion of many states and overturned the diplomatic balance of power created during the Renaissance.

The Reader’s Companion to Military History. Edited by Robert Cowley and Geoffrey Parker. Copyright © 1996 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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