This is definitely misstated and misleading the actual PRC defense spending
If you compare apple to apple than the US defense spending is grossly understated. Because it also doesn't include the veteran affair .Nor does it include the DOD and national research center who is responsible for nuclear research and fabrication.
Nor does it include NASA research center
How about supplemental budget to fund all those Iraq, Afghanistan war they too are not including in the military budget
SIPRI has the habit to whip up anti China hysteria. Why didn't they include it the US budget. China for its size is under spending their military compare to the other western nation that on average spend 2% of GDP for military purposes
Other military-related expenditures
Per-capita military spending 1962–2015 (inflation-adjusted 2011 dollars)
Military spending 1962–2015 (inflation-adjusted 2011 dollars)
This does not include many military-related items that are outside of the Defense Department budget, such as nuclear weapons research, maintenance, cleanup, and production, which are in the Atomic Energy Defense Activities section,
, the Treasury Department's payments in pensions to military retirees and widows and their families, interest on debt incurred in past wars, or State Department financing of foreign arms sales and militarily-related development assistance. Neither does it include defense spending that is not military in nature, such as the
, counter-terrorism spending by the
, and intelligence-gathering spending by
.