1. An event or action that causes tension or conflict between nations or their representatives, potentially damaging diplomatic relations
The ambassador's comments sparked a diplomatic incident between the two countries.
Os comentários do embaixador provocaram um incidente diplomático entre os dois países.
2. A breach of protocol or etiquette in international relations that offends a nation or its officials
The improper flag display created a diplomatic incident at the international summit.
A exibição inadequada da bandeira criou um incidente diplomático na cúpula internacional.