Brazil's President is using military resources to the Amazon to fight the massive wildfires that have sparked an international outcry.
"The protection of the forest is our duty," Bolsonaro said in a televised address.
"We are aware of that and will act to combat deforestation and criminal activities that put people at risk in the Amazon. We are a government of zero tolerance for crime, and in the environmental field it will not be different."
The country's defence minister added that some 44,000 troops will be made available to tackle the fires in six states that asked for federal help.
The military will also use two C-130 Hercules aircraft capable of dumping up to 12,000 litres of water on fires.

Damascus cafe blast kills 5, wounds 16
Rebels in Indonesia's Papua kill American pilot, burn plane
Russian air strikes kill 10, injure more than 50 in Ukraine's Kyiv
Firefighters battle wildfire in southern France
US, Iran talks conclude in Doha, focused on Strait of Hormuz
Trump honours Theodore Roosevelt in North Dakota, debuts new Air Force One
Kenyan court charges 8 schoolgirls with fellow students' murder
At least 5 people killed in fire in Antwerp apartment block
