Professional Backpacking
For some people, backpacking is a necessary and integral part of their job.
In the US military a framed backpack is referred to as a "rucksack" or simply a "ruck". Soldiers who serve in the militaries of most nation-states usually receive at least some rudimentary backpacking training while infantrymen are often trained to a more advanced backpacking skill level. They share many common attributes with amateur backpackers: being self-contained, use of land-navigation skills and actively minimizing their environmental foot-print. There are, however, a few differences—such as the need to carry weapons, ammunition, and communication equipment, and sometimes the need to maintain "noise and light discipline", which means remaining silent and in darkness to avoid detection.
Other professional backpackers include scientific and academic researchers, professional guides, photographers, park-rangers and "search & rescue" personnel.
Read more about this topic: Backpacking (wilderness)
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