There are no multiple truths in who started the war and who is responsible for it. Suggesting "many truths" follows Russian agenda, which they push in an attempt to justify their crimes.
Calling it "this conflict" creates very vague and misleading message. Calling it what it is makes things much more clear: "we already lost quite some lives due to Russian invasion of Ukraine".
Ukraine relinquished their nukes in an exchange for a legal written promise from the US, the UK and Russia itself to respect borders and sovereignty of Ukraine.