The Malvinas/Falklands: Why Will British Casualty Figures Remain Classified Until 14 June 2072?

At the end of the Malvinas/Falklands War, the British government enacted a military secrecy order effective until 14 June 2072—a period of 90 years. Until that date, anyone who discloses or publishes any information contained within that classified material will face appropriate prosecution before a court martial.

This is not merely a preliminary form of censorship but a clear instance of state-imposed secrecy for national security reasons.

So far, no substantial details regarding the contents of the secrecy order have emerged, but it is widely believed that one of its main points concerns the significant loss of life suffered by the United Kingdom during the conflict. There are also suggestions that it includes records of considerable losses of military vehicles—both naval and aerial. A large part of Britain’s logistical apparatus was reportedly destroyed or left at the bottom of the Atlantic.

The official British figures list 255 killed, 777 wounded, and approximately 280 subsequent suicides linked to war-related trauma. However, taking into account that an attacking force typically suffers higher casualties than a defending force—with even the most conservative estimates ranging from 2:1 to 3:1—the official numbers appear questionable, especially considering the harsh terrain, comparable to Greenland or the Scottish Highlands.

Below is a day-by-day account of British losses from their arrival at South Georgia on 23 April until 14 June 1982, when the islands were retaken. (In red are the daily combat casualties; in brackets, in some cases, are estimated figures reflecting the likely proportion of troops lost in each engagement):

Summary:

23/04: 1 – A Sea King helicopter crashes at South Georgia.
01/05: 10 (2) – Two Harriers destroyed near Port Stanley. Eight sailors killed in attacks on: HMS Arrow, HMS Exeter, HMS Glamorgan, HMS Hermes, HMS Alacrity.
02/05: 1 – A Sea Harrier shot down over Port Stanley by 20 mm artillery.
04/05: 43 (3) – Harriers downed at Condor Air Base. HMS Sheffield sinks (40 dead). HMS Hermes possibly hit by an Exocet missile, forcing a change of course and reducing air coverage. Some reports suggest severe damage or partial sinking.
05/05: 1 (1) – Royal Marine killed at Elephant Bay.
06/05: 2 (2) – Two Harriers shot down north of East Falkland.
12/05: 4 – HMS Glasgow disabled; attack on HMS Brilliant.
17/05: 1 (1) – Sea King helicopter downed near the Argentine coast.
18/05: 22 – Sea King crashes into Albatross (Argentine sources claim it was shot down).
19/05: 1 (1) – Sea King helicopter crash; SAS specialist killed.
21/05: 32 – Two Gazelles downed at San Carlos (3 dead). HMS Ardent sunk (22 dead). HMS Argonaut, HMS Antrim, HMS Brilliant disabled; HMS Broadsword damaged. Three Sea Harriers (1) and one Sea King (1) shot down.
22/05: 1 – Harrier shot down.
23/05: 8 – Harrier crashes during a night sortie from HMS Hermes (1 dead). HMS Antelope sunk (7 dead).
24/05: 10 – Damage to: HMS Sir Lancelot, HMS Sir Galahad, HMS Sir Bedivere, HMS Fearless (6+ casualties; actual figures may be higher, given the number of troops on board and the circumstances of the attack).
25/05: 135 – Three Harriers downed (3 dead). HMS Coventry sunk (90+ dead), HMS Atlantic Conveyor sunk (20 dead). HMS Broadsword, HMS Sir Lancelot disabled; HMS Alacrity, HMS Yarmouth damaged. Two Sea Kings shot down; two others damaged.
27/05: 11 – Seven Royal Marines killed at San Carlos (7 dead). Three Gazelle helicopters and one Sea King downed (4 dead).
28/05: 136 – Two Sea Kings and a Scout helicopter downed (3 dead). One soldier killed on West Falkland (1 dead). 130 troops from 2 Para and the Royal Auxiliary killed during the Battle of Darwin (27–29 May)—the equivalent of an entire infantry company.
30/05: 44 – 38 killed during the Battle of Goose Green (23–30 May). A Sea Harrier crashes (1 dead). HMS Invincible reportedly attacked (5+ casualties) by an Exocet and two 250 kg bombs. Unconfirmed reports suggest the ship sank, which would imply higher casualties.
08/06: 162 – Fitzroy attack: HMS Sir Galahad (89 dead), HMS Sir Tristam (40 dead), Foxtrot 4 landing craft (6+ dead). Several Chinese dockworkers killed on the beach during heavy bombardments. HMS Avenger disabled. HMS Plymouth attacked by five Argentine missiles at Pleasant Bay.
09/06: 18 – Two Sisters Mountain, SAS commandos.
10/06: 4 – Four Royal Marines killed in an accident.
11/06: 44 – Deaths between 11 and 12 June: (3) at Mount Harriet, (23) from 3 Para at Mount Longdon, (4) from 45 Commando, (1) from 42 Commando, (13) from B Company.
12/06: 29 – (4) at Two Sisters Mountain. HMS Glamorgan (25 dead) disabled by an Exocet missile fired from Port Stanley.
13/06: 360 – Deaths between 13 and 14 June in the battles of Mount Longdon, Mount Williams, and Wireless Ridge.
14/06: 10 (5) at Tumbledown; two Sea Kings shot down. Five killed at Top Malo House.

Total: 1,090 killed, not including potential additional unrecorded losses.

Damaged and Lost Vessels:

Sunk/Destroyed: 8 ships (including HMS Sheffield, HMS Coventry, HMS Ardent, HMS Antelope, HMS Sir Galahad, HMS Sir Tristam, Atlantic Conveyor, Foxtrot 4 landing craft).
Disabled: 9 ships (e.g., HMS Invincible (possibly sunk), HMS Alacrity, HMS Avenger, HMS Glamorgan, HMS Glasgow).
Heavily Damaged: 5 ships (e.g., HMS Brilliant, HMS Broadsword, HMS Plymouth, HMS Ambuscade, HMS Sir Lancelot).
Moderately Damaged: 9 ships (e.g., HMS Hermes, HMS Exeter, HMS Fearless, plus others).

Total Affected Ships: 31.

Aircraft Losses:

Fleet Air Arm: 19 Sea Harriers shot down, 10 grounded due to mechanical failure; 13 helicopters downed, 32 others disabled.
RAF: 12 Harriers downed, 5 grounded; 12 helicopters downed, 26 grounded.
Royal Marines and Army: Multiple helicopters lost (46 downed overall; 62 disabled).

Total Aircraft Lost: 154.

Of 77 fixed-wing aircraft deployed (Harriers and Sea Harriers), 46 were rendered inoperable. Out of 171 helicopters deployed, 108 became unusable.

Conclusion:

Total Dead: 1,090.
Total Ships Affected: 31.
Total Aircraft Lost: 154.

The UK has never disclosed the full extent of its personnel and equipment losses, which, by all accounts, exceeded those of Argentina and are reflected in the scale of damage sustained.