Brazil deployed military police to individually escort striking transit workers back to work.
And finally, in case you are heading down to enjoy some of the World Cup action, don't worry about getting to the games on time, because capitalism is ticking smoothly along there too:
"To break the strike at the subway in Brazil, the government has deployed the military police to force them back to work, which is against their own laws. Armed military police guard each worker as functions and administrative staff are diverted to other functions, endangering the subway users."
[source]