On Friday night, host nation France will face off against Romania in the opening match of Euro 2016, one of soccer's most prestigious international tournaments.
The championship will be held across stadiums in France and will showcase some of the world's best footballers. It will take place amid heightened security concerns after a series of high-profile, fatal terror attacks in France and neighboring Belgium.
Friday's match will be held at the Stade de France in Paris, where suicide bombers struck in November, killing four people, including themselves. That incident was part of a series of co-ordinated assaults on the city that killed 130 people and came after an earlier attack on Paris in January that left 17 dead.
This week, the U.K. government warned there was "a high threat from terrorism" at Euro 2016 – hot on the heels of a similar alert from the U.S. State Department. French authorities appear to be leaving little to chance and the country is set to remain in a state of emergency until July 26, after the tournament is over.
"The authorities will consider previous attacks, so they will be preparing for a small arms attacks similar to what we saw in Paris (on) November 13 last year and the January attacks at (the office of) Charlie Hebo," David Lowe, an expert in terrorism from the U.K.'s Liverpool John Moores University, told CNBC.
"(These types of attacks) are relatively easy to plan and carry out and they give the maximum effect in both casualties and in the terror effect," he said, adding that suicide bombings were another possibility.