SynergiesCTA will have important synergies with many of the new generation of astronomical and astroparticle observatories.As the flagship VHE gammaray observatory for the coming decades, CTA plays a similar role in the VHE waveband as the SKA in radio, ALMA at millimetre, or E-ELT/TMT/GMT in the optical wavebands, providing excellent sensitivity and resolution compared to prior facilities.At the same time, the scientific output of CTA will be enhanced by the additional capabilities provided by these instruments (and vice-versa).MWL and MM studies using CTA provide added value to the science cases in two main ways: Non-thermal emission:To understand the origin of cosmic rays and the extreme physical…