Relativistic jets from active galactic nuclei are among the Universe’s most extreme particle accelerators. Blazars, with jets pointed toward Earth, show dramatic multiwavelength variability and gamma-ray flares, offering unique insights into particle acceleration, jet dynamics, and magnetic field structure. Yet key processes, such as jet formation, the location of high-energy emission, and the mechanisms driving flares, remain poorly understood. This symposium brings together theorists, observers, and instrument scientists to address these challenges, focusing on universal jet physics across systems, including jet launching and collimation, particle acceleration, magnetic-field evolution, multi-band flaring and polarisation signatures, and multimessenger links involving neutrinos. Comparative insights from other jetted sources, such as GRBs, TDEs, and Galactic accreting systems, will broaden the scientific perspective. Building on progress surrounding the Africa Millimetre Telescope at the University of Namibia and the continued success of existing TeV facilities, this meeting will advance multimessenger studies, foster international collaboration, and engage early-career researchers and the growing African astronomy community.
