My research focuses on high-angular resolution studies related to star and planet formation. Using infrared interferometers such as VLTI, CHARA, and ALMA, I investigate the inner regions of protoplanetary disks and study the mass accretion and ejection processes taking place close to the forming star. Using these observations, I constrain the structure and physical conditions in the sub-AU inner disk regions and investigate where planets are forming in the disk and how they interact with the disk material.