Final answer:
The DD Form 5515 is typically included with the Navy's retained monthly financial returns, serving as a Debit Voucher to record disbursements and collections. Other forms mentioned have different purposes and are not directly related to the monthly financial returns.
Step-by-step explanation:
Within the context of the U.S. Navy's financial management, Navy Cash documents included with the retained monthly financial returns typically require the submission of certain forms for accurate financial record-keeping and auditing purposes. Among the forms mentioned, the DD Form 5515, also known as the 'Debit Voucher,' is often included with the monthly financial returns. DD Forms 1149, 1359, and 215 serve different purposes: DD Form 1149 is a 'Requisition and Invoice/Shipping Document,' DD Form 1359 is a 'Transaction Register,' and DD Form 215 is a correction to the member's Leave and Earnings Statement (LES). However, it is the DD Form 5515 that specifically aligns with the financial return process as it records transactions such as disbursements and collections related to Navy Cash activities.