What is the rescue arrow decal on a military jet pointing to?
It's a small door leading to a compartment which contains a handle on a reeled lanyard.  When fully extended, the handle and lanyard activate the pyrotechnic charges which jettison the canopy or other enclosure over the flight crew stations, facilitating rescue.



The arrow may also just point towards the external canopy latch in order to expedite cockpit access and rescue.