In the address filmed in Windsor Castle's Green Drawing Room,the Queen will invoke June's 75th anniversary of the D-Day landings as a broader observation on the need to heal the United Kingdom following years of debate about its impending departure from the European Union.
"For the 75th anniversary of that decisive battle,in a true spirit of reconciliation,those who had formerly been sworn enemies came together in friendly commemorations either side of the channel,putting past differences behind them,"she will say.
"By being willing to put past differences behind us and move forward together,we honour the freedom and democracy once won for us at so great a cost."
Speaking about the importance of reconciliation,she will also say that"small steps taken in faith and in hope can overcome long-held differences and deep-seated divisions to bring harmony and understanding".
"The path,of course,is not always smooth,and may at times this year have felt quite bumpy,but small steps can make a world of difference."
The royal family endured a torrid year dominated by the fallout from Prince Andrew's long association with billionaire paedophile Jeffrey Epstein. The Prince has been forced to abandon all public duties after a disastrous interview with the BBC triggered an angry backlash and threatened to damage the monarchy. It is unclear whether he will appear during the traditional royal family'line up'at Sandringham on Christmas Day.