A proposed U.K.-U.S. quantum partnership could serve as a strategic counterweight to China's growing influence in the field, leveraging complementary strengths to drive innovation and competitiveness. The partnership, exemplified by companies like Quantinuum, has made significant progress in developing fault-tolerant quantum computing, demonstrating 94 error-protected logical qubits. This achievement highlights the shift from theoretical research to early industrial capability, positioning the U.S. and U.K. as major players in the global quantum landscape. As governments worldwide increase their investments in quantum technology, coordinated transatlantic efforts are critical to securing a leadership position1. The urgency to adopt post-quantum cryptography (PQC) is increasing, driven by China's rapid advancements in quantum computing, which threaten to compromise current cryptographic systems. This partnership matters to practitioners because it could accelerate the development of quantum-resistant cryptography, ultimately protecting sensitive information from potential quantum-powered threats.