The International Ocean Discovery Program (IODP) is an international marine research program that explores Earth's history and structure recorded in seafloor sediments and rocks, and monitors subseafloor environments. IODP builds upon the earlier successes of the Deep Sea Drilling Project (DSDP) and Ocean Drilling Program (ODP) by employing multiple drilling platforms financed by the contributions from 25 participating nations. These platforms were used to reach new areas of the global subsurface during numerous expeditions. The Swiss participation in the program allows Swiss scientists to propose drilling targets, sail on drilling expeditions and obtain samples from completed drilling campaigns.