A change in geopolitics can turn friend into foe, a cross-border conflict between adversaries such as Russia and Ukraine can disrupt the supply chain, or the threat of export restrictions can become a concern for raw material sourcing (think of China and its hold on rare earths). Hence, there is a need to be self-sufficient in the production of critical minerals, metals, and rare eart... https://www.thehindu.com/opinion/op-ed/the-essential-minerals-for-a-robust-defence-ecosystem/article69615560.ece