What do you do when a soldier refuses to listen to your directions?

In this situation situation, UCMJ, Need to be done to the max Allowable for the change(s) filed. Even more so, if this soldier is a problem child. Make an example out of him/her and all else, to send a clear message. This will not be tolerated. Once the cancer spreads, it will be hell getting it cut out.

Are they prescription glasses? If so no such thing as unauthorized. I was told 1 time to take off mine, I refused and said they were prescription. Same NCO told me again, my Platoon Sargeant steped in this time and told the NCO that they were prescription and to leave me alone.

As a noncom you handle it at your level. If you can't handle insubordination, then maybe your unit can find someone who can. Stop asking stupid questions, and earn those stripes.

In 2000 I was TDY to Kuwait Int'l for airlift support. I was an E-7 and acting first shirt for the small detachment of airmen at the base. We were getting cargo ready to go on a C-130 bound for Bahrain. I asked the A1C to make sure he measured the height of the pallet so that we would know it would fit on the ramp. He brushed me off and when he tried to put it on the ramp it was two inches too high. I didn't yell at him. I just looked at him and asked, " So I guess you didn't do as i asked you to do. You didn't measure it." He didn't answer but looked at the ground. I told him, I didn't get these stripes from a cracker jack box. Now, I want you to tear down that pallet until you get it to the required height. Measure it again and next time I ask you to do something, then you better do it or you will be breaking down the pallet again." At the time I had 18 years of service and the airman had three. However, i was a reservist and he was active duty. Over the years I met many active duty who discounted our service because we were reservists. Of course I met many who told us, "I'd go to war with you any time."

You can either yell and scream and make a scene. Or take the professional route, inform the soldier that since they do feel the need to respect an NCO, you'll be counseling and recommending them for UCMJ. Then, go grab your next up NCO, fill them in, find the Article, or get with legal if you can't and begin the process. The over the top displays only go so far, and now days soldiers know you can't put hands on them anyway. So save yourself the stress, and take the easy way, counsel and recommend they lose time and money. My opinion anyway.

March him up to command office, tell the offender to have a seat, and fill out a formal charge sheet. Tell admin you wish to speak to the senior enlisted at admin level. Company Gunny, 1stSgt, SgtMaj, etc. Let them know the situation, tell them your plans to press charges, and ask them their opinion. I'm sure this will get worked out real quick.

While stationed in Germany back in 1987 I was a Motor Sgt and Squad leader. A Bn Organization Day gala was scheduled and as a bn directive our commander put out that the company was being bussed to Bn and no POV's were allowed. Upon arriving my 1SG an myself walked to the on post Burger King and found one of my PFC's in the drive thru in his car. We walked up and told him to report to us when he was finished. Upon arrival back at Bn the 1SG ordered him to hand over the keys to his car, which the young PFC refused. After several minutes of explaining that he was risking non-judicial punishment and he would be talking to the Commander he finally told the 1SG that he would give me his keys but not the 1SG. LOL.. He handed me the keys and I passed them to the 1SG.
Upon return to our kaserne he was given a Company Grade Article 15 and had his driving privilege's revoked for 6 months, during which time he dismantled the car to restore it and the car never saw the road again..

Well, there could be medical reasons for the soldier wearing the sunglasses. If that is the case, then the chain of command should have been aware of it. If that's not the case, then counseling may be in order, followed with corrective measures to correct his\her actions. Keeping in mind, good communications is always a must and at not time, should any soldier place his\her hands on another...

Well, it could be that the soldier has a medical reason for wearing the sunglasses. If that is the case, the soldier should have informed his chain of command, for the reason he\she is wearing sunglasses. if that is not the case. then, yes, have the soldier to remove his\her sunglasses. If the soldier refuses to do so, then informative counseling would be the next thing to consider, keeping in mind, the corrective actions, must be in line with correcting the actions of the soldier.