Turkey.
Turkey.
The Republic of Turkey
Anatolia is in Turkey
The country of Spain occupies most of the Iberian Peninsula.
Denmark, Italy, and Greece occupy full peninsulas. Denmark occupies the Jutland Peninsula, Italy occupies the Apennine, or Italian, peninsula, and Greece occupies the Greek Peninsula.
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Denmark occupies most of the Jutland peninsula, with Germany occupying a smaller part of it.
Anatolia is the biggest peninsula in Turkey. It is approximately %90 of the country.
The question is not very clear but what can be said it that the Asian part of Turkey is called Anadolu (Anatolia) which is a huge peninsula surrounded by the Black, Marmara, Aegean and Mediterranean Seas.
Spain
Yemen
Saudi Arabia occupies most of the peninsula.