One question - Libya's and Egypt's goverments adopted this deployment??? If so - what questions may be???
Libya barely even has a government, and Sisi wants to have an arms dealer with even less scruples than the west.
As weak as they are - they are recognized by UN AFAIK, and thus have every right to invite anybody (including Russians) without asking for US permission.
What matters here is that Russia is an enemy nation; arguably one of the major threats (although obviously not the greatest, even if Putin likes to pretend that this is the case) to American interests abroad. Furthermore, Putin's efforts to undermine American confidence in the democratic process by actively aiding the campaign of a kleptocratic, mentally unstable, compulsively dishonest, egomanical bigot and all-around manchild represented not just an foreign attack upon one of America's most scared institutions, but an enemy attack upon the American way of life and so much of what makes this country great.
While not a traditional declaration of war, that's exactly what the Putin regime's actions during the 2016 election were: a declaration of war upon America's values and institutions. Every patriotic American should be outraged and appalled by Russia's actions which explains why Donald Trump was fine with it (I mean let's be honest here, Trump and his family are many things, but patriots ain't one of them; Trump is a parasite who sees the Presidency as nothing more than a chance for his own personal enrichment and he wouldn't know civic duty if it punched him in the face). The Russian interference in the 2016 election – regardless of whether or not it changed the outcome – should be treated as an enemy nation passing the point of no return.
The U.S. should make it clear to Sisi that if he wants to continue to enjoy the level of support and aide that the Egyptian government has traditionally received from the U.S. (with the obvious exception of Morsi's regime) then they need to tell any Russian forces, military advisors, etc to get out of Egypt immediately and stay out. The fact is that Sisi's regeime still needs us more than they need you (even Morsi essentially did everything but wet himself in public when Obama made it clear in 2012 that the U.S. did not consider his government to be an ally, IIRC). If Egypt still refused to essentially tell Russia to get lost, it would suggest that the Egyptian military has forgotten where their bread is buttered and requires a harsh enough reminder to ensure that they don't forget again any time soon. Actions have consequences, after all. I suppose a carrot could be offered first, but either way, any Russian military presence (even in an advisory role) in Egypt is completely unacceptable and should be dealt with accordingly. To be fair, Libya is a bit more difficult, but the Russian forces and/or military advisors in Egypt should be a very easy fix.