The mitvah talks about ensuring every soldiers have a spade to cover their excrement.
The mitvah seems to be pretty obsolete because by now we have toilets all over the place.
So, how it's done?
Do IDF soldiers carry spade anyway and simulate covering after flushing the toilet? What?
It's talked about here
http://www.ou.org/torah/mitzvot/taryag/mitzvah567/
Okay maybe some says that the command is obsolete due to our technology. However, there is nothing around the commandment that says that it should be obeyed till, say, the invention of toilet.
In fact, there are verses that suggest that most mitvahs should be done till the end of time.
So how does that mitzvah done by IDF and why?