Answer:
Step-by-step explanation:
"An armed clash at the mouth of the Danube" refers to a conflict or confrontation that occurred in the area where the Danube River empties into the Black Sea. The term "armed clash" indicates that the conflict involved the use of weapons, and it could refer to a variety of different types of confrontations, such as a battle, skirmish, or armed altercation. The Danube is a major river in Europe that flows through multiple countries, and the area where it meets the Black Sea has been the site of numerous conflicts throughout history.