Professional Security, CPR, and Personal Defense Training in Yuma, AZ
Call To Schedule Training
Security.
Safety.
Readiness.
Professional training to help you act when it matters
Security & Event Protection
Professional event security services delivered by experienced, disciplined personnel who prioritize safety, awareness, and professionalism.
Self-Defense Training
Self-defense training that emphasizes situational awareness, risk reduction, and realistic response strategies based on real-world experience.
CPR, First Aid & AED Certification in Yuma, AZ
Learn how to act decisively when seconds matter. Our training prepares you to respond confidently to medical emergencies at work, school, or home.
Firearms Training
Responsible firearms education focused on safety, decision-making, and skill development for civilians, professionals, and organizations.
In critical moments, training matters.
At LifeShield Defense, our mission is simple: to empower individuals and organizations with the skills, confidence, and responsibility needed to save lives, protect others, and operate safely. We provide high-quality CPR, First Aid, AED, security, self-defense, and firearms training in Yuma, Arizona, grounded in real-world experience.
We still operate under the same values that guided our military career: Honor. Courage. Commitment.
Certification & Training
- CPR, First-AID, & AED Certification
- Firearms Training
- Self-Defense Training
Security Services
- Personal Security Services
- Event Security Services
LifeShield Defense, LLC
Yuma, AZ
Experience You Can Rely On
Built on service, responsibility, and real-world decision-making.
Yean Diaz brings over 20 years of experience in military service and firefighting, including deployments to Iraq and Afghanistan. That experience shapes how training is delivered: focused on clarity, sound judgment, and practical application.
Training is structured, adaptable, and appropriate to the setting and individuals involved. Whether working with organizations or individuals, the goal is the same: to ensure people understand their role, their responsibilities, and how to respond effectively when needed.
Yean works with individuals and organizations that value preparedness and want training that is straightforward, credible, and grounded in real experience.