James F. Amos — American Soldier born on November 12, 1946,

James F. "Jim" Amos is a retired United States Marine Corps four-star general who last served as the 35th Commandant of the Marine Corps from October 22, 2010, to October 17, 2014. As a Naval Aviator, Amos commanded the 3rd Marine Aircraft Wing during Operation Iraqi Freedom in 2003 and 2004. He served as the 31st Assistant Commandant of the Marine Corps from July 3, 2008, to October 22, 2010. He is the first Marine Corps aviator to serve as commandant. He retired from the Marine Corps with 44 years of service... (wikipedia)

There's not really a ban on the KIA bracelet specifically. There are regulations for wearing the uniform and specifically jewelry, and Marines are not allowed to wear bracelets. This falls under that spectrum. Now, the KIA bracelet will be lumped into the same category as the POW/MIA bracelets, which are approved for wear.
Whatever the job is, we can do it. That's why the nation has a Marine Corps.
The Marine Corps has been, and will continue to be, America's Expeditionary Force in Readiness - ready to respond to today's crisis, with today's Marine forces, today.
All Marines, sailors and civilian Marines, regardless of sexual orientation, are Marines first. Every Marine is a valued member of our war-fighting team.
There's a mindset of flexibility and adaptability that comes with us. We don't mind hardship. We don't mind somebody saying, 'Go in and do this nasty job.' Whatever the job is, we can do it. That's why the nation has a Marine Corps.