No a lion would kick your ass they are pretty big and have sharp claws and razor sharp teeth and they are just mean my advice dont fight lions
You will be taught how to defend agiast another human and it will be taught by showing the most effective strikes and holds nothing flashy only what gets the job done like i say trust in the training your selected service gives you and you will be fine
For more in depth i am under the assumption that the army now teaches everyone the 75th ranger hand to hand combat system... but you know what they say about assuming stuff