Alysia Macedo, who was just 19 when she joined the US Air Force, regularly posts pics of herself working out and wearing sexy costumes to her 193,000 followers on Instagram.

A JAW-DROPPING fitness model who serves in the US Air Force has amassed legions of fans for her stunning pics – both in and out of uniform.

Fitness model Alysia Macedo has nearly 200,000 followers

She joined the US Air Force when she was just 19

She combines beauty and love of her country — The 28-year-old combines beauty and love of her country

Macedo, now 28, works as a dental assistant in the forces and said it gave her the confidence she has now and allowed her to travel the world.

She said: “I had everything I wanted in life yet never felt satisfied. I wanted to be independent, travel the world, serve my country.”

“I think everyone should serve their country.”

The stunning brunette incorporates as much fitness as she can into her daily routine.

After work she goes to the gym for two hours and does weights

She instructs her followers on the most effective ways to work out

Alysia often dresses up as a superhero for her fans

She said: “I wake up at 4am, go to the gym from 5-6.30 am, go to work set up for my patients until 7.30 and work until 4.30-5 depending on whats going on.

“After work I go to the gym for two hours and do weights.

In my free time I teach prevention against violence, sexual assault , and many other things for everyone on base.”

However, she admits being an attractive female in the military can be hard.

She works as a dental assistant in the forces

The fitness model admits life can be hard for an attractive woman in the forces

She says her career choice has allowed her to travel the world

The fun-loving model also advises her followers about diet

She often wows her 193k followers on Instagram with exercises in her swimsuit

She wants to start a couples' fitness app — The serving USAF personnel wants to start a couples’ fitness app

Alysia also runs prevention against violence and sexual assault courses

In this photo she shows off her inked abs

She spends hours a day lifting weights to hone her muscles

Alysia poses with an assault rifle on a quad bike

The superwoman says the airmen she serves with are not sexist

She said: “I didn’t have it easy. Most peers I spoke to for advice or mentoring were males.

“No matter where you are people can be cruel.”

Although she doesn’t think her fellow airmen are sexist, she added: “I do think it was easier for men to be heard, and taken seriously.”

Macedo also has her own website offering fitness tips, workouts and diet advice.

She said: “Both my parents came from Europe so we didn’t have soda, chips, fast food like most American families did.

The jaw dropping fitness model also her own website offering fitness tips and workouts

Alysia thinks everyone should fight for their country

The uniforms she wears in her day-today duties — The uniforms she wears in her day-to-day duties

She is proud to serve with the US Air Force all over the globe

She said: 'I want people to see me being goofy having fun working out' — She said: ‘I want people to see me being goofy having fun working out’