The Egyptian army did apparently not shoot (much) at its own people because the conscripts refused to do so.
This will certainly feed into the argumentation of pro-conscription crowds, but it's still just an anecdote under special circumstances for the context of pro/contra conscription debates (the Wehrmacht was still a conscript-based force, for example).
The same anecdote is most interesting from another perspective, though:
The primary force for oppressing the own people overtly is still the police. What does this tell us about police? At the very least it should not be a foreign police force, but well-rooted in the civil society.
Domestic policemen may support a dictatorship, but foreign policemen have even less restraints.
Think about the bilateral cooperation between European police forces with this in mind. European police forces have already cooperated to a degree at which foreign policemen were empowered by domestic authorities to serve in a riot control and event security role with police powers.
Zudem ist der Einsatz von deutschen Polizeikräften auf ausländischem Staatsgebiet als auch der Einsatz von ausländischen Polizeibeamten in Deutschland gängige Praxis und hat sich bewährt. Dabei sind die Polizeikräfte regelmäßig auch mit exekutiven Befugnissen ausgestattet.
(Furthermore is the employment of German police forces on foreign territory as well as the employment of foreign police officers in Germany prevalent practice and has proved itself. [These] police forces are regularly equipped with executive authorities.)
The legal excuse is apparently article 24 of the Prüm Convention (2005) between Austria, Belgium France, Germany, Luxembourg, the Netherlands and Spain.It was joined later by Finland, Slovenia, Hungary, Norway, Estonia and Romania. The convention does not oblige signatory states to grant powers to foreign policemen, but it seems to encourage it.
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I applaud when states prefer cooperation over confrontation.
It's also fine when they cooperate in order to prevent waste and cut mistakes.
Nevertheless, foreign police with executive powers on German territory goes too far.
I bet that few will pick up this perspective in the coming months and years for mainstream debates.