A senior former Nato official said Russian president Vladimir Putin contemplated using a tactical nuclear weapon in the autumn of 2022 but was talked out of it. Rose Gottemoeller, who was Nato deputy secretary general between 2016 and 2019, told a conference in Dublin that it happened in October 2022 when it looked like Russia might lose the war following a successful Ukrainian counterattack in the Kherson region. Gottemoeller spoke at the Law Society of Ireland’s Centre for Justice and Law Reform summer school in Blackhall Place in Dublin. Other speakers will include former taoiseach Leo Varadkar, former Ukraine minister…