What are the capitals of the two large countries that occupy the iberian peninsula?
Madrid capital of Spain
Lisbon capital of Portugal
Madrid, in Spain, and Lisbon, in Portugal. These capitals belong to the two largest countries (by far) in the Iberian Peninsula, the westernmost part of the European mainland bordering the Mediterranean Sea, Atlantic Ocean, and Bay of Biscay. The Iberian Peninsula also includes Andorra, Gibraltar (UK), and a small section of Southern France.
Which eastern Asian countries occupy the Chos n Peninsula between the yellow sea and the sea of japan?
I assume you mean the left of Spain. Upon its formation, yes, Portugal has always been Portugal. However, before there was a Portugal, there were other Kingdoms and Empires in its place. For example, the Roman Empire. Spain used to also occupy all of the Iberian Peninsula, in which the two countries are situated. Before the modern-day Portugal, there was the Kingdom of Portugal.