diplomatic structure; diplomatic framework
Refers to the overall organization, system, or framework of a country's diplomacy, including institutions, policies, and personnel.
Building a new diplomatic framework is an urgent task.
After the war, Japan's diplomatic structure changed significantly.
外交政策 refers to specific foreign policies or strategies, while 外交体制 refers to the broader institutional and organizational framework of diplomacy.
Compound of 外交 (diplomacy) and 体制 (system, structure).