Hundreds of thousands of people and nearly 50 heads of state and government are due to march in Paris on Sunday in remembrance of the victims of last week's terror attacks in France.
Ukraine-European Union Relations
Euronews: Huge security operation ahead of Paris terror victims march
French police stand in the street in Longpont, northern France, on Jan. 8, 2015, during searches as part of an investigation into a deadly attack the day before by armed gunmen on the Paris offices of French satirical weekly Charlie Hebdo.
