DynaMICCS: The Sun as an Integrated Magnetic System

After the observations of SoHO, there is a real need to pursue global solar observations from the core to the corona and to put new constraints on the dynamical processes which act inside and outside the Sun. The DynaMICCS mission proposed to ESA in the framework of COSMIC VISION 2015–2025 has this objective. We concentrate here on the motivations to look for the magnetism of the solar radiative zone.