Corruption is a pervasive issue in Ukraine, deeply ingrained in the government and the economy, eroding public trust and hindering social and economic development. The government has taken steps to combat corruption, but challenges persist. Therefore, this study delves into the relevance and importance of addressing corruption in the defense sector due to its potential to jeopardize national security, deplete resources, erode public confidence, and disrupt military discipline, ultimately undermining military effectiveness and international cooperation. Preventing corruption in the defense sector necessitates a multifaceted approach. Beyond punitive measures, it requires systemic reforms and efficient mechanisms to ensure compliance in this critical area. The authors underscore that combating corruption during martial law depends on political will and robust legislative support, encompassing comprehensive legal frameworks to regulate anti-corruption mechanisms and establish accountability. This article’s primary objective is to examine corruption liability in the defense sector, emphasizing violent offenses and weapon utilization as significant risk factors. It scrutinizes legislative backing and the effectiveness of anti-corruption measures in the defense sector, particularly institutional strategies. Moreover, the article underscores the imperative of refining the legal framework to curb corruption and prevent the misuse of weapons and violence for personal gain.