Sentence 1: `` Spruance '' was sunk on 23 March 2005 and then defeated on 8 December 2006 as a target .
Sentence 2: `` Spruance '' was decommissioned on 23 March 2005 and then was sunk as a target on 8 December 2006 .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?