Proposed Amendment to the Constitution, Presented by the Federal Deputy, Seeks to Allow the Development and Use of an Atomic Bomb as a Tool for Defense and Deterrence to Ensure National Sovereignty.
In a move that promises to generate intense debate in the political and diplomatic landscape, federal deputy Kim Kataguiri (União-SP) is maneuvering to present a Proposed Amendment to the Constitution (PEC) to allow Brazil to develop and possess an atomic bomb. In an interview with the portal Metrópoles, the parliamentarian argued that the measure is essential to ensure national sovereignty at a time of increasing global geopolitical instability. The aim, according to him, is not to enable the country for attacks, but rather to create a powerful deterrent.
To officially begin the legislative process, 171 signatures from deputies are required. Once submitted, the PEC must pass through the analysis of the Constitution and Justice Committee (CCJ) and, if approved, moves to a vote in the chambers of the House of Representatives and the Federal Senate. The initiative represents a radical change in Brazil’s foreign and defense policy, which is a signatory to international treaties against the proliferation of nuclear weapons.
National Sovereignty in a Context of Global Tension
The main motivation behind the proposal, as detailed by Kim Kataguiri to Metrópoles, is the perception of an increase in international tensions. The deputy cited various hotspots of instability, such as the war between Russia and Ukraine, the conflict in the Middle East involving Israel and allies of Iran, and the disputes between China and Taiwan. For him, these events demonstrate that Brazil cannot remain dependent on the protection of other nations to secure its territory and interests.
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The parliamentarian emphasizes that possessing an atomic bomb would serve as a mechanism for defense and deterrence. “I do not propose that we have an atomic bomb to use, to attack any country […], but that we have a means of defense and deterrence to make it clear: do not invade Brazil”, asserted Kataguiri in the interview. The idea is that the mere nuclear capability of the country would deter any attempts at external aggression, ensuring that Brazil has autonomy to defend itself.
The Challenges of International Treaties
One of the biggest obstacles to the proposal is the international legal framework that Brazil is part of. The country is a signatory to important agreements such as the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) and the Treaty on the Prohibition of Nuclear Weapons (TPNW), enacted in 2017. These documents commit Brazil not to develop, acquire, or possess nuclear armaments. The PEC presented by Kataguiri directly addresses this issue.
According to the deputy, the text of the constitutional amendment provides for the denunciation of all treaties signed by Brazil that prohibit the possession of nuclear weapons. In practice, this would mean the revocation of the decrees that validated these agreements in the national legal system. This rupture would represent a historical turn in Brazilian diplomacy, which traditionally advocates disarmament and the peaceful use of nuclear technology.
Technical and Budgetary Feasibility
When questioned by Metrópoles about how the development of an atomic bomb would be financed and executed, Kim Kataguiri explained that these details are not included in the PEC. According to him, budget definition and implementation strategy are prerogatives of the Executive Branch, which would be responsible for planning these steps following the potential approval of the amendment. However, the deputy argues that Brazil has the technical capability to initiate a project of this magnitude.
“Brazil is not new to nuclear energy”, he emphasized, citing the accumulated experience with the Angra dos Reis power plants. Kataguiri also mentioned the possibility of forming partnerships with nations that already possess this expertise. Regarding financing, he advocates for the creation of a detached and discretionary budget for the defense sector, allowing the federal government flexibility to invest in strategic projects like this.
Political Reception and the Diplomatic Impact
Within Congress, the deputy claims to feel a “good reception” to the idea, indicating that the debate transcends party lines. “I see that there is a supra-party issue, so I do not see major ideological resistances, except from a more extreme left”, he said to Metrópoles. He plans to start collecting signatures next week and mentioned that even a minister from the Lula government has already talked about the need to discuss the issue of nuclear defense.
Regarding Brazil’s possible diplomatic isolation, Kataguiri expressed optimism, arguing that possessing an atomic bomb could actually increase international respect for the country. “I believe this would even make Brazil more respected on the international stage”, he declared. In the parliamentarian’s view, the measure would demonstrate that Brazil will not accept a secondary role in the global arena, breaking what he calls the “monopoly” of nuclear weapons maintained by developed countries.
Do you agree with the proposal for Brazil to have an atomic bomb for defense purposes? Do you think this would strengthen or weaken the country’s position in the world? Leave your opinion in the comments; we want to hear what you think about this proposal.


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