As an example, although the EU as a combined entity of twenty-five nations is not perceived as a military force nor has it made a show of force as a military being, it is only surpassed in military strength by the United States. “ For instance, outside the US Navy, there are just 12 aircraft carriers in the world in service or being built. Eight of those ships belong to EU member states. The European states have kept between 50,000 and 100,000 troops continuously deployed, in operations abroad since 1999” (Ulriksen 457). However, EU strategy is not to develop traditional methods of military superiority; rather, its focus is on developing its military strength based on its own inherent values, personal strengths, interests, and visions. The EU in this example has not been granted sovereignty in the case of an EU wide military; however, that has not limited their sovereignty with regard to the portions given by the member states.
With the UK’ s signing of the European Community Act of 1972 (ECA 1972) and enjoining itself with the European Union (EU), it has been argued that Parliament has relinquished its sovereignty. In [2001} EWCH Admin 934, the Morgan Judgment, the court held that per Section 2, 2.
(2) of the ECA 1972 the state was afforded authority to enact subordinate legislature. Further in 2 (4) of the same section, it was argued that Parliament had bound itself by signing legislation that resulted in Parliament’ s relinquishing sovereignty in that this act supersedes British law which is in conflict with EU law. Although it can be argued that parliamentary sovereignty has been eroded by the passage of this act, the court ruled that the ECA of 1972 is not entrenched and, therefore, can be repealed.
Several cases seem to limit the supremacy of Parliament with the emergence of the EU. The landmark case of Costa v ENEL  ECR 1125 is the often quoted ruling delineating the sovereignty of EU. In this ruling, it was upheld that EC law overrides any national law that conflicts with it.
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