\"Analysis of the FY 2019 Defense Budget\" from the CSIS Defense Budget Analysis program provides an in-depth assessment of the Trump administrationâs request for national defense funding in FY 2019. In addition to analyzing the request for the upcoming fiscal year and the Department of Defenseâs projections for the future, the report assesses long-term trends in defense funding levels by spending title and Service as well as changes in the militaryâs force structure over time.