Most rigorous fighting program in military branches

Hey guys, I've been considering joining the military after graduation, and I'm particularly interested in the combat programs of different branches. I mean, I'm looking for a real challenge. Anyone know which branch is known for having the most rigorous fighting program?

The rigor of a combat program varies not so much by branch but by the specific role or special operation units within each branch. Each military branch has its own special operations force that is known for rigorous training and challenging requirements.

For the Army, it's the U.S. Army Special Forces, often known as the Green Berets. The Green Berets are known for Unconventional Warfare, including working with foreign nations to train and support their forces in combat skills.

The Navy has the U.S. Navy SEALs. SEAL (Sea, Air, and Land) teams go through some of the toughest physical and mental training in the world. The six-month Basic Underwater Demolition/SEAL (BUD/S) training alone has a reputation for being incredibly demanding.

In the Air Force, it's the Pararescuemen (PJs) who are trained to rescue and medically treat downed military personnel. PJs undergo a grueling two-year training process covering everything from paramedic training to scuba and skydiving.

The Marine Corps has the Force Reconnaissance companies, colloquially known as Force Recon, responsible for deep reconnaissance and direct action. Training includes an Accelerated Training Program where candidates learn infiltration methods, special reconnaissance and various languages.

Lastly, the newly formed Space Force does not currently maintain a combat program.

Please note that these roles aren't the 'end-all-be-all' of combat roles in the various military branches, and all require high physical fitness, mental fortitude, and technical skills. It's important to do your research and talk to recruiters from each branch to decide which is the best fit for your personal skills and interests.