France will mobilize thousands of servicemen to boost security during the Bastille Day ceremony on July 14, the Paris prefecture said on Tuesday.

About 11,000 policemen and military police will be deployed in Paris and surrounding areas on the eve of the French national holiday. In addition, 2,000 firefighters will be mobilized for rescue operations, it added.

The US Air Force Thunderbirds fly over the Arc de Triomphe during a rehearsal of the traditional Bastille Day military parade in Paris, France, on July 11, 2017. /VCG Photo

US President Donald Trump will attend the annual Bastille Day military parade.

Speaking to local media, Paris police chief Michel Delpuech called Trump's participation "a major challenge in the context of high-terror risk", adding that French and US security teams were working on ways to protect the US president.

US troops, with soldiers wearing WWI helmets, walk on the Champs Elysees during a rehearsal of the traditional Bastille Day military parade in Paris, France on July 10, 2017. /VCG Photo

Delpuech added that access to the Champs Elysees will be protected by barriers to thwart vehicle attacks.

Over the past two years, France has been hit by a series of terror attacks.

(Source: Xinhua)