Observations of the gamma-ray emission from the Milky Way have significantly improved in recent years thanks to the current space instruments such as Fermi LAT and AGILE, and to the ground-based telescopes at higher energies such as for example H.E.S.S., VERITAS, MAGIC, and HAWC. While these high-quality data are providing crucial information on Galactic sources, interstellar emissions, and high-energy particles, they are challenging our understanding. I will discuss the state of the art, recent results, and prospects for future instruments.
