Adm. Marty Dempsey honored as he steps down as Army chairman . Obama : `` Our nation is more secure because of the service that you have rendered . '' ` Mike , as you look back at your four consequential years as chairman and your four decades in uniform , be assured : Our military is stronger and our nation is more secure because of the service that you have rendered . '' Mullen urges American to become more connected to military personnel . Joint Chiefs Gen. Mike Mullen is the new chairman .
Adm. Marty Dempsey honored as he steps down as Army chairman . Obama : `` Our nation is more secure because of the service that you have rendered . '' Mullen urges American to become more connected to military personnel . Joint Chiefs Gen. Mike Mullen is the new chairman .