Both Ukrainian and Western intelligence sources say Russia has lost about 70,000 troops in the past two months and about 550,000 so far since the start of the war, with a casualty rate right now of about 1,000 - 1,500 a month. At the current loss rate, they may raise their total losses to 700,000+ (I think they said 770,000) by the end of the year. Putin is seeking to win via mass and/or Western fatigue forcing Ukraine to negotiate. I am really curious at these loss rates how long Putin can sustain this.