Brazilian President Luiz Inacio Lula da Silva formally launched his campaign for a fourth presidential term on Sunday, addressing a packed convention center in Sao Paulo filled with Workers' Party supporters.

At 80 years old, Lula, who previously served two terms from 2003 to 2010 before returning to power in 2023, declared his intention to run for the presidency for the seventh time. He indicated that if elected in the upcoming October vote, this would be his final term.

Instead of dwelling on his domestic achievements, Lula's speech centered on Brazil's position in a volatile global landscape. He advocated for increased defense spending and pledged to safeguard the nation's reserves of rare earths and other crucial minerals against foreign exploitation. "I want to be prepared, so that no one invades this country," Lula stated, warning that China, the United States, and France would require respect for Brazil's sovereignty to access its mineral wealth.

The president's focus on sovereignty resonates amidst rising tensions between Brasilia and Washington, particularly following recent U.S. tariffs on Brazilian goods, which Brazil's government rejected. Lula has also drawn a contrast with his main challenger, Senator Flavio Bolsonaro, the eldest son of former President Jair Bolsonaro, who has maintained close ties with former U.S. President Donald Trump. Lula has framed the election as a choice between national independence and subservience to foreign interests, labelling Flavio Bolsonaro a "traitor to the nation," an accusation the senator denies.

Political analyst Leonardo Paz of the Getulio Vargas Foundation noted that the sovereignty message is strategically beneficial for Lula at this juncture. Paz commented that the theme allows the president to identify an external adversary, potentially unifying domestic support.

Flavio Bolsonaro, 45, has emerged as the leading right-wing candidate after his father's conviction for plotting to overturn the 2022 election results. The relationship between the Bolsonaro family and Donald Trump has been a recurring theme, with Lula leveraging it to bolster his national independence narrative.

Lula's administration has seen a significant reduction in Amazon deforestation, reaching its lowest level in a decade under his current presidency, a point of pride and a contrast to the policies of the previous government. This environmental progress, coupled with the sovereignty message, forms a core part of his re-election platform.

The upcoming election is set to be a closely watched contest, with Lula's emphasis on national self-determination and resource protection likely to be a central plank of his campaign against the backdrop of international trade disputes and domestic political rivalries.