FLORIANOPOLIS (AFP) - A tightly coordinated 170,000-strong security contingent will ensure peace and order at the World Cup games that get underway in Brazil this June, organizers said on Thursday.

"A total of 150,000 public security professionals and military will ensure World Cup security," said Andrei Rodrigues, Brazil's national secretary for major events.

To that force will be added 20,000 private security personnel, he added, as a country hit in recent months by protests over poor public services and the cost of hosting the event leaves nothing to chance.

After demonstrations over the multibillion dollar price-tag for staging the tournament as well as the 2016 Rio Olympics, authorities stressed they will do everything in their power to ensure it goes smoothly.

FIFA director of security Ralf Mutschke indicated he was confident in Brazil's ability to host a safe tournament.

"We are convinced a safe World Cup will be delivered in Brazil," Mutschke told a news conference.

"The teams have great faith in the level of security going to be provided," Mutschke added, as a two-day logistics workshop attended by the coaches of 25 of the 32 competing teams drew to a close.

Thursday's security meeting in the southern city of Florianopolis saw defense and justice ministry officials join FIFA's security spokesman to lay out the parameters of the event's "security matrix." Mindful of how authorities were caught out by protests that drew more than a million people during last June's Confederations Cup warm-up event, Brazil will deploy the army to counter major disruption.

President Dilma Rousseff said Wednesday troops would be mobilized "if necessary" to ensure fan security at the June 12-July 13 World Cup.

"Armed forces shall be called on if needed to guarantee law and order," said army General Jamil Meyid Junior.