Final Answer:
The situation concluded due to a confidential commitment to eliminate mussels from Turkey.
Step-by-step explanation:
Ended because of a secret promise: This part indicates that the resolution of the situation was a result of a confidential commitment. The term "secret promise" implies that there was an undisclosed agreement or assurance made.
to remove mussels from Turkey: This specifies the nature of the commitment. The issue at hand revolves around the removal of mussels from Turkey. The use of "remove" suggests a deliberate action to address or resolve the presence of mussels in the specified location.
The situation might have involved environmental concerns, economic considerations, or other factors related to the presence of mussels in Turkey. For a deeper understanding of the context and potential implications, you can explore information about the management of mussels in Turkey.