The opening framework distinguishes the information available to belligerents from the wider evidence an observing navy must collect. Participants generate operational records and may add prisoner interrogation, espionage, and other intelligence to what their own forces report. An outside service gathers official histories, government publications, biographies, press reporting, eyewitness testimony, and clandestine material, then assesses each source for reliability and bias. The modern comparison is an intelligence staff that watches open online material without advertising its interest, because visible official attention might change what participants publish. Automated collection can gather enormous quantities of irrelevant data, so human selection and interpretation probably remain central.
Chapter · 4:25-7:41
How participants and observers collect wartime evidence
A navy at war generates operational information, while outsiders assemble official records, eyewitness accounts, and other available evidence.