National and foreign military forces can play a vital role in the response. In natural disasters, many national militaries are designated auxiliary or even primary first responders in-country. If a large-scale disaster exceeds the response capacity of an affected country, the Government may seek assistance from the international community or neighbouring and partner countries. As part of their response, foreign Governments tend to deploy their military forces, especially if these are already deployed in the region. In armed conflicts and complex emergencies, humanitarian and military actors share the same operating space, but not the same mission. They are likely to have very distinct roles and mandates.