“For the first time, I am going to include the issue of national defence in a government programme so that we can make a public commitment,” he said.

Lula stressed that Brazil has no intention of threatening other countries but said it could not afford to be unprepared.

He questioned the commitment of major powers to nuclear disarmament and pointed to military expansion by countries including Pakistan, India, China and the United States .

“It is full of madmen in the world. Right now, the president of the United States wants to keep Greenland and says that Canada is going to become a state. He wants to take the Panama Canal,” Lula said.

The president added that Brazil should recognise its size and strategic importance within Latin America .

He said he did not want war but also did not want Brazil “to be caught by surprise.”

Lula is seeking re-election in October and is expected to face right-wing Senator Flávio Bolsonaro. National security has emerged as a key issue in the campaign, with Bolsonaro focusing his proposals on tougher measures against organised crime and drug trafficking.