Contingent

Contingent is a group of people representing an organization or country or a part of a military force [Cambridge Dictionary].
As a noun, contingent means either “a group of soldiers that joins a larger force,” like a contingent of British troops sent to assist American soldiers, or “a group of people with something in common.”
The adjective contingent can describe something occurring only when something else happens first. Making money is contingent on finding a good-paying job.
When an event or situation is contingent, it depends on some other event or fact. For example, sometimes buying a new house must be contingent upon someone else buying your old one first. That way, you don't end up owning two houses [Vocabulary.com].

Sources:

Contingent. Cambridge Dictionary. Retrieved from: https://dictionary.cambridge.org/dictionary/english/contingent

Contingent. Vocabulary.com. Retrieved from: https://www.vocabulary.com/dictionary/contingent