There were over 250,000 Belgian refugees in the UK in WW1. Many were accommodated at Alexandra Palace, but not Hecule Poirot who found refuge at a country house, Style Court.
Every year on the Saturday before Belgian National Day, 21 July, a delegation of Belgian soldiers pay tribute at the Cenotaph to the Belgian and British fighters who lost their lives during WW1, WW2 and subsequent conflicts. Flowers are laid at the Horse Guards Memorial and the Cenotaph. From Joint Forces: "The origins of the Belgian parade at the Cenotaph go back to 1934. On February 17 of that year, Albert I, King of the Belgians, died in a fall from the rocks in Marche-Les-Dames. In honour of his nephew, King George V of the United Kingdom granted the Belgians a unique honour: an annual parade in uniform to the Cenotaph. This makes Belgium the only country outside the Commonwealth that has the right to march armed on British soil."
