Complex sentence: The World Firefighter Games is an international sporting event that welcomes all full-time, part-time and volunteer structural firefighters and bush firefighters, and aviation fire services and military emergency response personnel and their immediate direct family from all across the globe.
Split into simpler sentences: The World Firefighter Games is an International sporting event that welcomes all full-time part-time, Structural Firefighters, Bush fire firefighters & Volunteer firefighters, Aviation Fire Services. Military Emergency Response personnel and their immediate direct family from all across the globe.