It would keep the allied powers safe and help them defeat the axis powers
USS Scorpion
World War 2 was fought on the European Continent, Northern Africa, The Atlantic Ocean, The Pacific Ocean, The islands in the Pacific Ocean, China, Russia and the Mediterranean Sea. See link below.
Mediterranean theater
Atlantic, Baltic, Mediterranean
During World War I, European powers engaged in various operations in Africa and the Mediterranean, primarily to secure colonies and resources. The East African Campaign involved British and colonial forces fighting against German troops in places like modern-day Tanzania. In the Mediterranean, significant battles occurred, such as the Gallipoli Campaign, where Allied forces aimed to secure a sea route to Russia. Additionally, naval engagements in the Mediterranean were crucial for controlling maritime trade routes and supporting ground operations.
Mediterranean Sea Mussolini regarded the Mediterranean as his responsibility, which he referred as 'Mare Nostrum'----Our Sea.
Austro-hungary
No, it lost access after World War I. Prior to World War I, Bulgaria included what is now the Greek province of Western Thrace and therefore had an outlet on the Aegean Sea (which is considered an arm of the Mediterranean). However, since the Treaty of Neuilly in 1919, Western Thrace belongs to Greece, cutting Bulgaria off to the Mediterranean.
The Aegean Sea is the body of water between Troy and Ithaca, and it is important to the Greeks because it is where Greek civilization first began. The Ionian Sea is to the west of the Aegean Sea, and it is important to the Greeks because it was the site of the Trojan War. The Mediterranean Sea is to the south of the Aegean Sea, and it is important to the Greeks because it is the sea that links the Greek world to the rest of the world.
The Romans called the Mediterranean Sea "our sea" after the Punic wars as they controlled just about the entire area.
The littoral of the eastern Mediterranean Sea.
If there were U-boats in the Black Sea they could have traveled throug the Mediterranean Sea, the Aegean Sea, the Sea of Marmara, the Hellespont, and the Bosphorus into the Black Sea.
Germany had many very good ports but none on the Mediterranean Sea. France has excellent ports on the Mediterranean Sea so it was to Germany's advantage to take France in World War II.
Throughout periods of the history of Bulgaria the Middle Sea has been its natural west and south border. It completely lost its Mediterranean Shores after the Second World War. Bulgaria today has a marvellous east coast on the Black Sea, which is part of The Mediterranean basin. The cultute, cuisine, the climate, and the folk music of Southern Bulgaria are Mediterranean. But to answer the principle question, No. There are numerous countries that do not border the Mediterranean Sea. Chile, Canada, the USA, Zimbabwe, India, China, and Russia, just to name a few, are countries that do not border the Mediterranean Sea.
American naval power made the Mediterranean its permanent base during the Cold war.
The island of Crete in the Mediterranean Sea.
controlled access to the mediterranean sea :)