The Yucatan Peninsula is part of the country if Mexico.
java is an island on the Indonesian archipelago. it is a part of Indonesia.
Mexico.
An archipelago is basically a group of islands usually encompassed within one country (Indonesia, for example) a peninsula is kind of like an island.
Svalbard is officially an archipelago which is the most northen part of Norway.
Ireland.
Yes Andorra is a country on the Iberian Peninsula. It is very small country with few people living there. It is by the mountains. The Iberian Peninsula is Spain.
these states did not have strong, central monarchies
Sweden
Denmark.
Finland is usually thought to be part of the peninsula, but in reality only Norway and Sweden are.
It is part of the country of Mexico, composed by the states of Campeche, Yucatan and Quintana Roo.