https://www.dailymail.co.uk/news/article-13089227/republicans-capability-russia-anti-satellite-alarmist.html
Republicans question if the US has the capability to respond
to Russia attacking its satellites: GOP infighting continues
as some raise concern about American strength in space and
others criticize 'alarmist' warning
. . .
More panic over a currently non-existent Russian weapon.
It has already been proven that ground or air-launched
missiles can hit satellites. China and Russia made a big
mess in orbit proving this a couple years ago.
However a laser-based sat killer could zap a lot more
sats a lot quicker - with no telltale missiles rising
and the time-delay involved.
As for western mil/comm sats ... they are NOT armored.
That'd add WAY WAY too much weight. A couple taps from
a strong pulsed laser and that'd be that. Even shiny
foils might not offer much protection and in many apps
would interfere with radio transmissions and/or
solar panels. Di/Trichrotic mirror film MIGHT get
past some of those problems, but you kinda need to
know the enemy laser frequency ahead of time.
Despite sci-fi, particle beams are likely NOT very
good for long-range attacks in Earth orbit. Maybe
something like a "micro-missile", maybe the size of
a pencil, with a really smart guidance system, could
be employed.
So, the best protection is to NOT have the fuckin' war
in the first place. Nobody really wins ; they just get
the honor of rotting to death a couple weeks later on.