According to foreign media reports, since November 30, Greece, Cyprus, Egypt, France and the United Arab Emirates have held a week-long joint maritime military exercise in the Mediterranean region, aiming to strengthen the joint combat capability and improve the combat readiness level of the participating troops. This is the first time that the five countries have gathered in the Mediterranean to hold a joint military exercise, which has aroused the attention of all parties. < / P > < p > the exercise comes at a time of tension in the eastern Mediterranean region. In recent years, Turkey’s relations with Greece and Cyprus have been deteriorating with the development of oil and gas resources in the eastern Mediterranean Sea and maritime delimitation. In August, due to the signing of the maritime demarcation agreement between Greece and Egypt, Turkey sent exploration ships to the disputed waters for many times and sent warships to escort, which caused strong dissatisfaction in Greece. The two countries are constantly engaged in “war of words” and are competing to carry out military exercises in the disputed sea areas. Since September, Turkey has sent ships to the disputed waters from time to time for resource exploration, and the regional situation has become increasingly unstable. < / P > < p > for the first time, the five countries gathered in the Mediterranean to hold a joint military exercise, highlighting their intention to target Turkey. In addition to Greece, Cyprus and Egypt in the eastern Mediterranean region, France, a European power, and the Gulf state of the United Arab Emirates, all of the five countries participating in the exercise have geopolitical conflicts with Turkey. < / P > < p > Egypt, the United Arab Emirates and Turkey, because of the sharp opposition on the issue of the brotherhood, have presented a camp confrontation pattern, and the contradiction has become increasingly prominent because they support one side on the issue of Libya. France and Turkey have been at loggerheads over the Mediterranean security, the Libya issue, the European refugee crisis, and their perception of extremism. In addition, Saudi Arabia, the United States, Bahrain, Italy and other countries participated in the exercise as observer countries, sending an unprecedented tough signal to Turkey. < / P > < p > behind the complex contradiction between oil and gas resources development and maritime delimitation in the eastern Mediterranean region, it is essentially the geopolitical competition between the relevant countries. The competition for the ownership of regional energy is mixed with the game of cross regional energy transportation channel, which is related to the geopolitical status and the relationship between countries. Greece, Cyprus, Israel, Egypt and other countries jointly build oil and gas pipelines to Europe. Turkey, which has been abandoned, is naturally very dissatisfied. Turkey’s multiple dissatisfaction with the surrounding situation continues to rise, and strongly intervenes in many hot issues around Turkey, trying to expand its geopolitical influence. Erdogan government will not change its policy tendency in the short term in the face of rising domestic nationalist sentiment and severe domestic and foreign challenges. < / P > < p > moreover, countries in the region have attracted more supporters, which is bound to lead to more and more countries inside and outside the region involved. The camp confrontation pattern in the eastern Mediterranean region tends to become clear, which will also increase the difficulty of solving regional disputes. < / P > < p > as a matter of fact, for Turkey, the threat of EU sanctions makes it rather afraid. In recent years, the contradiction between the EU and Turkey has deepened, and the EU naturally stands on the side of its member states Greece and Cyprus, so it has repeatedly urged Turkey to stop exploration operations and threatened to impose sanctions. Turkey always responds to the pressure from the EU in a timely manner. After all, the EU is Turkey’s most important economic and trade partner and source of investment. In September, Turkey withdrew its exploration ships temporarily because of the threat from the European Union. In addition, EU leaders may discuss again whether to impose sanctions on turkey at the EU summit in December. France recently issued an ultimatum style tough threat, saying that Turkey must stop before December, otherwise any consequences are possible. The prospect of EU joint sanctions is still uncertain, but Turkey, which is facing severe challenges at home and abroad, has to take it seriously. < / P > < p > therefore, combined military deterrence and more threatening EU sanctions may make Turkey stop temporarily and cool down the regional situation for a short time. However, in order to completely solve the disputes in the eastern Mediterranean region in the future, an international cooperation framework including all countries in the region needs to be established.