With the BDU/DCU uniform, it was the wearer's left side for non-combat deployments and overseas cantonment, and it would be on the wearer's right side for combat deployments (or deployments which had such potential). Since the adoption of the ACU uniform, I've only seen the flags worn on the wearer's right side.
On the left side of your dress uniform for the Army. Usually below the other badges if you have room. Navy, Marines, Airforce will wear ribbons of the left side of the dress uniform. Ferguson
The combat action badge are worn with "Class A" Army green, blue or white uniform coats. You must wear that uniform when wearing the badge.
An Army National Guard Recruiter.
If you've graduated from Army Rigger's School, then, and only then, you can wear the "para rigger badge."
Most agencies wear the badge on the left.
When I was serving in the Army we used to wear our poppy behind the cap badge
Whatever badge/ribbon you are awarded, you rate to wear it, no matter what branch of service you are in.
No, US Army soldiers are not authorized to wear the German Armed Forces Proficiency Badge as a ribbon instead of the badge on their Class A or ASU uniforms. The regulations specify that the badge should be worn in its original form, as a sewn-on embroidered badge.
You wear the Expert Infantry Badge above the Airborne Wings on all Army uniforms. The Expert Infantry Badge is Skill level 1. Airborne Wings are level 4.
You wear a blazer badge when you have received an award that allows you to wear the badge. Also, you wear a badge when you belong to an organization that requires you to wear one.
AR 670-1
According to the current AR 670-1, (Feb 3rd, 2005 w/ Summary of Change) on pg 298, you wear the CAB, (Combat Action Badge) 1/4 inch above your ribbons, centered, or if the lapel covers your badge, you wear the CAB so the left edge is aligned to the left edge of the ribbons.