The advantages from getting it to work are sufficient on their own merits to not require massive military application. Practical fusion is worth trillions of dollars in the decades after its development. If we get it, all the billions we've poured into it, even down a blind alley, will seem like an underinvestment.
and yet the US has defunded and underfunded new Fusion research related to power generation at every turn for the past 20 years. Pinning our hopes on the ITER boondoggle.
