看了一下，有人認為五年每年都砍8%，
五年後的國防預算剩（1-8%）^5=65.9%
。從文義上很難看得出來這說法對不對，
所以找了一下其他佐證：
https://www.airforcetimes.com/news/pentagon-congress/2025/02/19/white-house-eyes
“ …in a memo sent out Wednesday
evening, acting Deputy Secretary of
Defense Robert Salesses said the goal
was to find “offsets” in the fiscal 2026
budget plan, with a goal of finding at
least $50 billion to transfer to “programs
aligned with President Trump’s priorities.”
An 8% annual cut for the next five years
would mean almost $300 billion less in
military spending through fiscal 2030
compared to a stable budget figure. But
most years, lawmakers approve increases
in military spending at least equal to
inflation, and often even higher than that.”
所以就是2026年500億，到2030年的5
年合計3000億的意思，也就是每年都92%
，並不是複合刪減率每年8%。