What is an Air Force cryptologic language analyst (CLA)?

Could you please elaborate on the role and responsibilities of an Air Force cryptologic language analyst (CLA)? I'm curious to know how they contribute to national security and intelligence gathering. Specifically, what languages do they specialize in? Do they engage in linguistic analysis of intercepted communications? How do their skills intersect with cryptography and how do they aid in decrypting encrypted messages? Additionally, what training and qualifications are required to become a CLA in the Air Force? Thank you for your insights.