Lilia Meza Montes is a leading advocate for diversity and inclusion in physics through her work with the International Union of Pure and Applied Physics (IUPAP). She focuses on identifying barriers to participation and developing strategies to promote equitable opportunities for women and under-represented groups in science. Lilia has been instrumental in designing and implementing institutional initiatives aimed at increasing representation, fostering inclusive environments and supporting women scientists in advancing their careers globally. Her work combines policy development, mentorship and international collaboration to ensure structural change in scientific organizations