I am reminded of this by a web post by a member of the Israeli Army reserves, called up on Rosh Hashanah:
Two days later was Rosh Hashanah, and I had been told that I would be allowed to be home for the holiday. Everything was prepared, and I was excited to be home with the kids and friends. But then I received a phone call informing me that I would not be able to stay at home; rather I had to be on duty in case there were any more incidents...While many military units have chaplains, some units do not, and not all chaplains have shofar. So if you live near a base, consider offering to sound shofar for the troops.
I packed my machzor and clothes, and my wife gave me some kugel and cake. But the one thing I didn’t possess was a shofar. What would I do without a shofar? Would someone come to the base, or would it be a Rosh Hashanah sans shofar blowing?
I recall being the only religious soldier on this small base, and it was lonely having to do all the davening alone. However, the meals were eaten together with the others, and I was given the “duty” of reciting the Kiddush. The following morning I again took my machzor in hand, and went up the lookout tower...
Right before I got to the Mussaf prayer that has all the shofar blowing I heard steps, and there was one of my fellow reserve soldiers, Rav Uri Dasberg, with shofar in hand! I couldn’t believe it. Uri lived even closer to the base and was allowed to stay at home, but came especially for me. As I had done in my own shul for many years, I called out the sounds of the shofar and Uri did every note to perfection. He was my personal shofar blower.