王位排除法案
In the absence of a permanent army, the Scots Brigade was an important source of military professionals for both Charles II and James II, who nominally controlled the appointment of officers. In reality, this required negotiation and many Brigade officers were political and religious exiles, particularly after the 1679–81 Exclusion Crisis; in 1680, Charles tried to appoint the Catholic Earl of Dumbarton as Brigade commander but William refused.