It seems as though you may have married an Afghan citizen. How many times have you met in person? Was this arranged or did you meet online? When did you originally make contact? Are there any red flags like different religions, age difference, have either of you been married before do you have children? Did you get married on your first visit? Was your spouse working for one of the governments or NGOs? Has he applied for resettlement/asylum/evacuation by any government? Did you get married after the Taliban took over? Were you married in Afghanistan or another country? Assume you may be asking about including a letter when applying for sponsorship. Depending on your answer to my questions there may be more or less scrutiny about your application.