on the approval or authority of the Secretary of the Air Force, and payments may be made on his certificate of necessity for confidential military purposes. Operation and maintenance, space force For expenses, not otherwise provided for, necessary for the operation and maintenance of the Space Force, as authorized by law, $2,498,544,000 (reduced by $5,000,000) (reduced by $2,000,000). Operation and maintenance, defense- W ide (including transfer of funds) For expenses, not otherwise provided for, necessary for the operation and maintenance of activities and agencies of the Department of Defense (other than the military departments), as authorized by law, $38,967,817,000 (reduced by $7,700,000) (reduced by $4,000,000) (reduced by $3,000,000) (increased by $3,000,000) (reduced by $2,500,000) (reduced by $5,000,000) (reduced by $5,000,000) (reduced by $5,000,000) (reduced by $4,000,000) (reduced by $500,000) (reduced by $5,000,000) (reduced by $5,000,000) (reduced by $7,000,000) (reduced by $31,306,000) (reduced by $4,000,000) (reduced by $382,084,000) (increased by $382,084,000) (reduced by $4,000,000) (reduced by $4,000,000) (reduced by $2,000,000) (reduced by $5,000,000) (increased by $5,000,000) (reduced by $20,000,000) (reduced by $2,000,000) (increased by $2,000,000) (reduced by $5,000,000) (reduced by $1,000,000) (reduced by $15,000,000) (reduced by $6,000,000) (reduced by $2,500,000) (increased by $2,500,000) (reduced by $10,000,000) (reduced by $5,000,000) (reduced by $10,000,000): Provided , That not more than $6,859,000 may be used for the Combatant Commander Initiative Fund authorized under section 166a of title 10, United States Code: Provided further , That not to exceed $36,000,000 can be used for emergencies and extraordinary expenses, to be expended on the approval or authority of the Secretary of Defense, and payments may be made on his certificate of necessity for confidential military purposes: Provided further , That of the funds provided under this heading, not less than $48,000,000 shall be