UPDATED 1/14/2021: The showcase below reaches as far back as 2005, the year GlobalFirepower.com was officially launched. In regards to the finalized rankings, bear in mind that the GFP formula changes from year-to-year to include new factors and do away with old. In its original incarnation, the site tracked 25 global military powers while, today, this has reached 138 nations in all. As a result, direct year-to-year comparisons become difficult to have (particularly against the more basic formula used in the earlier years). Only the top 25 world military powers are shown in each list below.