I live in FL my husband does not. We have 1 son. I want a divorce, my husband refuses to sign the papers. help

My husband lives in Trinidad, we have been separated 8 yrs now. We have no property or monies tied together. My son has been with me since he was 5 yrs, he is now 13yrs. I want a divorce, but my husband refuses to sign the divorce papers. What do I do.?