Rio de Janeiro - Brazilian President Michel Temer issued a decree on Tuesday to deploy 9 000 soldiers in Rio de Janeiro's metropolitan area until February 22, one week before Carnaval ends. That's almost half the troops used during last year's Olympic Games.The decision partly fulfils Rio de Janeiro Governor Luiz Fernando Pezao's request to have troops police the entire state until March 5. Defence Minister Raul Jungmann told a news conference that soldiers are already on the streets."This is pre-emptive," Jungmann said, adding that security in the state was firmly under control and resources were sufficient. "We have protests here, but that has not stopped police from working."The soldiers are to help out amid police officers' strike threats and riots led by anarchists during state legislature votes on austerity measures as the annual Carnaval celebrations take off. Local police officers' salaries have been delayed amid financial troubles.The deployment of soldiers across Rio state could be extended for additional days if necessary, Jungmann said.The move comes on the heels of a widespread protest by the relatives that military police officers said kept them from patrolling for a week and sparked a crime wave in neighbouring Espirito Santo state.Authorities there opened disciplinary proceedings on Tuesday against dozens of officers.Temer has called the halt in Espirito Santo "an insurgency against the Constitution".Procedures have been initiated to fire 151 military police, said Gustavo Tenorio, a spokesperson for the state's Public Safety Department. Another 10 will be opened later this week and investigations into four senior officers have been initiated.Because military police play a key role in providing security in Brazil, they are not allowed to strike.Authorities insist the officers were behind the protests and were effectively holding an illegal strike.Several hundred military police have now returned to duty in Espirito Santo. Federal troops, called in at the height of the crisis, continue to help patrol.