It’s more in relation to the following:

The global range for operational military GHG emissions is approximately between 300 and 600 million tonnes (Mt) of CO2 e, which is between 0.6% and 1.2% of total global GHG emissions.19 The estimate for the global military carbon footprint is approximately between 1,600 to 3,500 MtCO 2 e, which is between 3.3% and 7.0% of total global GHG emissions. These are wide ranges of estimates, but they emphasise the paucity of data in this field.

From Estimating the Military’s Global Greenhouse Gas Emissions - 2022 :: Authors: Stuart Parkinson, Scientists for Global Responsibility (SGR) with Linsey Cottrell, Conflict and Environment Observatory (CEOBS)