|A snapshot from the time I at the Fire Support Dept 86-89. Always one Brit, Canadian and Australian and perhaps an alternating slot from elsewhere. (Venezualan then); don't know if that slot was for South Americans or not. They were exchange officers, not exactly LNOs.
But, Snow Hall cafeteria was a great place to see and talk to soldiers/marines from all over the world! I went through a short instructor training course that had a Turk, Chinese, 2 Sudanese, and a couple Arab officers enrolled; where else can you get that kind of experience?