Water area is the sum of the surfaces of all inland water bodies, such as lakes, reservoirs, or rivers, as delimited by international boundaries and/or coastlines.
Every international land boundary dispute in the "Guide to International Boundaries," a map published by the Department of State, is included.
The region is one of the world's largest producers of low-grade lignite coal, but has few other resources.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "international boundaries" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.