Have submarines accidentally surfaced through Arctic ice into a camp, and why are deliberate ice breakouts publicized?
Short answerAn accident is possible but unlikely to be public; planned surfacing is a risky demonstration of under-ice and strategic-launch capability.
NotesAn accidental emergence near an ice camp cannot be ruled out, and any such incident might never become public. Deliberate surfacing events are selected carefully because ice can damage the hull, sail, and other fittings. Navies publicize them to prove an under-ice capability rather than performing them routinely. Attack submarines usually make the demonstration, allowing a navy to imply that its ballistic-missile boats could also break through and launch without risking a strategic submarine in the stunt. The practice became reciprocal Cold War signaling once both NATO and Soviet boats showed they could do it.