Question: When did the man who commanded the Task Force Tarawa retire? 
Sentence (from "Task Force Tarawa"): They were a Marine Air-Ground Task Force commanded by Brigadier General Richard F. Natonski that was attached to the I Marine Expeditionary Force during the course of the invasion and were most notable for their participation in the heavy fighting in the city of an-Nāṣiriyyah.
Relevant evidence: Yes