I've been married since 2002 my husband left me a year later I want a divorce but he's in his country. How can I get divorced

The important issue is to be sure the opposing party is aware of the legal action you are taking.  It is best if he can be served with legal papers personally.  If he visits Connecticut, you should serve your papers at that time.  If you do not have an address, you may satisfy the notice requirement if you publish details of your legal action in a newspaper of general circulation in the area in which he last resided.