Explain how nationalism can eliminate an international boundary.

Nationalism can eliminate boundaries through the irredentism of the specified nation. A country puts itself above others so that they are willing to annex other nations that they believe should be a part of them. The irredentism of Germany and the removal of the Berlin wall eliminated a border creating a single unified federal state.

Explanation:

the philippine sea

explanation:

the philippine sea is a marginal sea east and northeast of the philippines occupying an estimated surface area of 5 million square kilometers.

answer biscay bay;