Final answer:
The Georgia colony was established as a garrison province to defend the British colonies, primarily from Spanish Florida. It also served as a haven for the 'worthy poor' and an alternative to debtor's prison.
Step-by-step explanation:
James Oglethorpe and the Trustees wanted to establish the Georgia colony as a garrison province to defend the southern part of the British colonies, specifically from Spanish Florida. They saw Georgia as a buffer zone between the British settlements and their imperial rivals. Oglethorpe envisioned Georgia as a place to provide military protection and to also serve as a haven for the 'worthy poor' and an alternative to debtor's prison.