noun which may take the genitive case particle 'no'
cross-national; between nations; international
Used as a no-adjective to describe relations, comparisons, or activities between countries. Often appears in formal or academic contexts.
国家間の協力が不可欠だ。
Cooperation between nations is essential.
国家間の経済格差は依然として大きい。
The economic disparity between nations remains large.