In recent years, the Jadar Valley in Serbia and Mount Majevica in Bosnia have emerged as significant battlegrounds in the global struggle against lithium mining. Initially, the opposition in Serbia was centered around environmental concerns and the potential disruption to local ecosystems. However, as the mining operations expanded and their impacts became more pronounced, the resistance evolved into a cross-border movement involving Bosnian communities as well. This transnational effort has garnered widespread attention, reflecting a growing awareness of the environmental and social costs associated with lithium extraction. The collaboration between Serbian and Bosnian communities highlights the increasing importance of regional solidarity in addressing industrial projects that threaten both the environment and local livelihoods. As the movement gains momentum, it poses a significant challenge to the mining companies and governments seeking to advance such projects, raising questions about the balance between economic development and environmental stewardship.