The biggest factor in how many calories you burn per mile of walking is your weight rather than your speed. According to the research that produced these numbers, at a walking pace speed makes only a minor difference. You will burn more calories by walking more miles.
I believe the Army starts their fiscal year on 1st October and runs until 30 September.
A fiscal year is a 12-month accounting period. The Internal Revenue Service determined that the fiscal year for individual taxpayers runs from January 1 through December 31. However, businesses are free to choose a different fiscal year, perhaps from June 1 through May 31.