If they're straight hash marks they're usually 6 months in a combat zone, each; angled hash marks indicate 3 years of active duty service, each.
No.
Salvation Army
The ACU uniform adopted in 2005 is. The current Multi Cam uniforms being issued to units deploying to Afghanistan are not.
The Purple Heart is given that accolade.
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.
The same as you would wear any other awarded ribbon on the Army dress uniform. I have attached a link to this question to further assist you.
Check the Marine Uniform regulations. They will specify what ribbons you are authorized to wear from the Army. Medals awarded are normally going to be allowed, but ribbons that don't come with medals probably won't be.
Above your right pocket, offset to the right (left as you face the uniform)
Because it's worn uniformly by all personnel in the Army.
The uniform was first fielded in April of 2005
Being in the correct uniform at the right time in the army is crucial for discipline, professionalism, and unity. It ensures that all soldiers are easily identifiable and fosters a sense of pride and cohesion within the unit. Additionally, it is a display of respect for the military institution and its traditions.
There is no flag on the dress uniform
This may sound confusing- I hope I explain in such a way it can be understood. Unit awards (Presidential Unit Citations, i.e.) are not personal decorations- they are awarded to members of an entire unit on a single date. If you were a member of the unit when it was awarded, you can wear it forever, regardless of where your military career sends you. If you became a member of that unit AFTER the Citation was awarded, you can wear it while you are a member of that unit, but upon transfer, you are no longer authorized to wear it on your uniform.
You get several different types of uniforms - PT uniform, dress uniform, ACU uniform, etc.
No the CIB is a an Army award and not transferrable to the Marine Core dress uniform.
No, the Army Commander's Award for Civilian Service ribbon is awarded by the U.S. Army and is not authorized for wear on Marine uniforms. Each branch of the military has its own set of authorized ribbons and medals.
A person does not get a uniform before boot camp in the army reserve. A uniform is handed out during the Reception Battalion, referred to also as week zero.