Are you sure you're old enough to vote?
Our military is smaller.
Not weaker.
The Defense spending is higher than it has ever been.
So what did Obama do to make the military "weaker"?
Trump keeps promising to make our military strong. It's very strong. Nobody is beating down our military. We lose one soldier, sadly, to ISiS and it's a big freakin' deal. We're pinkmisting their guys daily and it's barely news.
The military is fine. Trump can argue about HOW obama is using it - Trump advocates torture and he advocates murdering the wife/children of terrorists. Okay, that is very different from what obama is doing. ANd that's cool if his supporters want to see that.
Reminds me of the scene from Game of Thrones when the Queen is sending the guards to stab all the bastard children that the king fathers. Stabbing babies in their cribs - not that much different from Trump dropping bombs/sending in men with rifles, to "take out their families".
We have plenty of military, with the coolest toys on the planet, and the best training too. Obama just isn't using them as Trump and his supporters wish.