Never heard of diplomacy? These US security experts had a nice idea back in May:

We advocate for a meaningful and genuine commitment to diplomacy, specifically an immediate ceasefire and negotiations without any disqualifying or prohibitive preconditions. Deliberate provocations delivered the Russia-Ukraine War. In the same manner, deliberate diplomacy can end it.

Seems the politicians are catching on to the same facts these days: NBC News, Nov 4th: Western officials broach with Kyiv issue of possible peace talks with Moscow