I'll die on that (tropical) hill: French Guiana can be used in place of Ascension Island. Look at the distances involved. In fact it is actually closer ! Btw, just like Nimrods, french Atlantique 1 & 2 have colossal range and can patrol all the way and back.
Distance: 3,868.96 mi (6,226.50 km)
Shows the distance in kilometres between Ascension-Island, Ascension, SHN and Falkland-Islands and displays the route on an interactive map. Worldwide distance calculator with air line, route planner, travel duration and flight distances.
www.distance.to
Distance: 3,957.95 mi (6,369.70 km)
This is Operation Tobus, the closest France ever got from BLACK BUCK, with its Mirage IVA. February 1986, reconnaissance over Lybia and Tchad.
https://aviateurs-e--monsite-com.tr...obus.html?_x_tr_sl=fr&_x_tr_tl=en&_x_tr_hl=fr
A few years earlier Jaguar extreme endurance had been tested.
Un excellent article de mon camarade Patrick J dans le dernier "Piège" nous rappelle les exploits de nos vaillants chasseurs en matière de durée du vol. De mémoire de pilote, le vol le plus long appartient à un Mirage IV qui fit 11 heures de vol le 18...
www-pilotedechasse-org.translate.goog
So, basically Jaguars and Mirage IVAs can fly up to 10 hours at 900 km/h - an average 9000 km range. Too short for BLACK BUCK raids over the Falklands flying out of French Guiana.