The US government spends significantly more on education than the military, ~$800B on K-12 education alone. On a per student basis, the US spends more than almost any other country in the world. If US education is poor, it isn't for lack of government spending.

Per the US Department of Education[0], the US spends 34% more per student than the OECD average. At the post-secondary level, the US spends double the OECD average.

[0] https://nces.ed.gov/programs/coe/indicator/cmd/education-exp...