Brazilian authorities say more than 150,000 security personnel will be deployed across the country during this year's World Cup football tournament.
Officials on Thursday briefed reporters and coaches from 25 of the 32 teams competing in the tournament in June and July.
One-hundred 50-thousand public security personnel will be diverted to World Cup duty, helped by 20,000 private security officers.
Military officials say the army also would be called on if needed to keep law and order.
Brazil is spending more than $800 million for security at this year's matches.
More than 1-million demonstrators turned out for anti-government protests during last year's qualifying games in Brazil.