Yes, but if it is a expensive watch I suggest you leave it home.
It depends on the specific regulations of the army you are in. Some armies may permit the wear of a gold watch with the uniform, while others may have stricter guidelines that only allow certain types of watches. It's best to consult your army's uniform regulations for clarity on this matter.
Yes.
On social occasions when the prescribed uniform is the Army Blue Uniform, personnel who don't have one are authorized to wear the Army Green Uniform with white shirt and bow tie.
No the CIB is a an Army award and not transferrable to the Marine Core dress uniform.
Usually, his dress-up Army uniform.
Yes.
Absolutly!
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.
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.
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
Yes, you are allowed to wear awards from other U.S. military services on your Navy Uniform.
When I was serving in the Army we used to wear our poppy behind the cap badge
Depends on which army, and which uniform you have in mind. The current US Army Class A uniforms are blue, with the blouse being a dark blue, and the trousers being much lighter, while officers wear a gold stripe down the sides of the trousers. The ACU (Army Combat Uniform) is various shades of green, tan, and grey.