The International Mars Exploration Working Group (IMEWG) is an organization of all major space agencies and institutions participating in the exploration of the planet Mars.  Conceived in 1993, the working group meets twice per year to discuss an international strategy for the exploration of Mars. Initial participants included Austria, Canada, France, Germany, Great Britain, Italy, Japan, Russia, the European Space Agency, and the United States.

See Also 
International Lunar Exploration Working Group

References

External Links 
Official Website

Exploration of Mars