(CNN) – Saudi Arabia launched a massive military exercise that will include troops from 20 nations, state media reported Monday.

The drill, dubbed North Thunder, involves Arab and Muslim countries, according to the Saudi Press Agency. It’s taking place in King Khalid Military City in northeastern Saudi Arabia.

The news agency did not provide much information on what the exercise entails but called it “the largest in the region’s history.” The agency said it will involve air, sea and land forces.

In addition to Saudi Arabia, other participating nations include Jordan, Bahrain, Senegal, Oman, Qatar, United Arab Emirates, Sudan, Kuwait, the Maldives, Morocco, Pakistan, Chad, Tunisia, Comoro Islands, Djibouti, Malaysia, Egypt, Mauritania and Mauritius.

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