Both arms were drawn into the effort to defend the administration during the period.
Arena defended his performance during eight years as coach of the national team.
Police say they were forced to defend themselves during the clashes.
The team defended their title in March during this year's state championship.
Ours is the only campaign with a chance to defend itself during those five months.
In the parliament, he made a significant attempt to defend the rights of political prisoners during the 1990s.
Army tanks came to defend it against attacks by security troops during the afternoon.
This proved to be easier for defending the city during a siege.
It also played a key role in defending the city from the British during the War of 1812.
He will therefore defend it during the second stage.