People look at poppy petals and crosses at the Field of Remembrance at Westminster Abbey in London, Britain on Nov. 7, 2020, before the Armistice Day, which marks the end of World War I in 1918. Hundreds of small crosses bearing poppy petals have been planted in the Field of Remembrance to pay tribute to British servicemen and women who have lost their lives in conflicts. (Photos: Xinhua)

A staff member places a cross with poppy petals at the Field of Remembrance at Westminster Abbey in London, Britain, on Nov. 7, 2020, before the Armistice Day, which marks the end of World War I in 1918. Hundreds of small crosses bearing poppy petals have been planted in the Field of Remembrance to pay tribute to British servicemen and women who have lost their lives in conflicts.

Photo taken on Nov. 7, 2020 shows poppy petals and crosses at the Field of Remembrance at Westminster Abbey in London, Britain, before the Armistice Day, which marks the end of World War I in 1918. Hundreds of small crosses bearing poppy petals have been planted in the Field of Remembrance to pay tribute to British servicemen and women who have lost their lives in conflicts.

People look at poppy petals and crosses at the Field of Remembrance at Westminster Abbey in London, Britain on Nov. 7, 2020, before the Armistice Day, which marks the end of World War I in 1918. Hundreds of small crosses bearing poppy petals have been planted in the Field of Remembrance to pay tribute to British servicemen and women who have lost their lives in conflicts.

Photo taken on Nov. 7, 2020 shows poppy petals and crosses at the Field of Remembrance at Westminster Abbey in London, Britain, before the Armistice Day, which marks the end of World War I in 1918. Hundreds of small crosses bearing poppy petals have been planted in the Field of Remembrance to pay tribute to British servicemen and women who have lost their lives in conflicts.

People walk past poppy petals and crosses at the Field of Remembrance at Westminster Abbey in London, Britain on Nov. 7, 2020, before the Armistice Day, which marks the end of World War I in 1918. Hundreds of small crosses bearing poppy petals have been planted in the Field of Remembrance to pay tribute to British servicemen and women who have lost their lives in conflicts.