An investigation is underway as to whether US military personnel tried to get the government to foot the bill for a total of $96,576 (£63,268) spent on strippers in Las Vegas.
The Pentagon's Inspector General is also looking into claims the personnel tried to expense $952,258 (£623,838) spent in casinos.
The claims first arose in a report in May, which noted that in one case a member of the Air Force was demoted after spending $4,686 (£3,069) at Sapphire Gentlemen's Club in Las Vegas.
He tried to spend an additional $920 (£602) but had already exceeded his credit limit, the report said.
Other individual transactions included $2,100 (£1,375) spent at Vegas Showgirls and $1,614 (£1,057) at Larry Flynt’s Hustler Club.
The Inspector General's office memorandum released on Wednesday, said the Senate Armed Services Committee requested a follow-on investigation.
It said: "Our objective is to determine whether (Defense Department) cardholders who used government travel cards at casinos and adult entertainment establishments for personal use sought or received reimbursement for the charges," the memo said.
The memorandum also said the investigation would look into whether disciplinary action was taken in cases of personal use. ®