RE: By the Numbers: Another Solo Global War AAR
Posted: Thu Oct 01, 2020 9:22 pm
January 1, 1941. Operation Dog Run.
The Plan.
(1) CW combine, Free French naval.
(2) Though HQ support from either Alexander (+2) or Wavell (+1.5) was desirable, and risky, it wasn't feasible because of the rain. Any plan for either HQ to move into the mountain hex directly west of Messina resulted in a flip. So, any HQ support was not possible.
(3) RN move #1. Queens in Malta move directly to Homs, Libya, embark the 5-3 London MIL and then move directly to Palermo where the MIL is automatically disembarked.
(4) RN move #2. From Malta, 6 Queen Elizabeth BBs, 2 TRS, CA & CV to 3-box of Italian Coast. 2 TRS load Alexander HQ-I and eng mot div from Malta.
(5) Free French naval move #1. French CA in Homs, Libya loads British 2nd inf div and moves to 3-box of Italian Coast.
(6) Free French naval move #2. French TRS in Trapani to 2-box, East Med and loads 43rd mot div & Bofers AA div in Tripoli.
(7) RAF ground strike (4 air groups/missions) used vs out-of-supply German XXX corps holding Messina. Though, Italian CAP over hex is possible but estimated as unlikely, Italian intercept isn't. So it's expected that this ground strike goes in unmolested. If not, RAF FTR & RN CVP FTR could/will provide escort. (SCRIPT: Though as the axis I know what the allies are planning, if I didn't I estimate that I'd be very unlikely to fly Italian CAP against a CW ground strike over Messina. Therefore, no CAP).
(8) There's a 48.16% chance that the OOS elite German corps will be flipped by the ground strike, which would reduce it's defense factors from 5 to 3, which are doubled because of mountain terrain, and give +2 to the land combat.
(9) CW Land Moves x 3. Royal Marine corps, London MIL in Palermo move and 2nd inf div disembarks to mountain hex directly west of Messina for a total of 12 land factors.
(10) 6 Queen Elizabeth BBs in 3-box will provide shore bombardment. Because of the weather each ship's bombardment is reduced by 1 which means 15 total factors reduced to 9.
(11) The Italians have the possibility of 2 ground support factors if their bomber gets through.
(12) 5 land combat scenarios were examined: (1) Baseline, 5 factors of ground support, no Italian ground support, XXX corps n0t ground struck (i.e., organized). (2) Worse Case, no allied ground support, XXX corps not flipped and +2 Italian ground support. (3) Best Case. XXX corps flipped and no Italian ground support. (4) XXX corps flipped and +2 Italian ground support. (5) XXX corps not flipped and no ground support.
(13) If the RAF manages to flip XXX corps (48.15%) then the chance of success is 66 to 79% with chance of disaster (loss of all three attackers) of 6 to 7.8%.
(14) If the RAF doesn't flip XXX corps (51.85%) then the chance of success reduces greatly to 32 to 37.8% with the chance of disaster of 14.6 to 16.5%.
(15) For higher ups (i.e., PM Churchill & Sir John Dill) all this is boiled down into two numbers: Pr{Success}=53% & Pr{disaster}=11%.
(16) Effectively, Operation Dog Run is a coin flip with about a 1 in 10 chance of total disaster. However, the gains by far out weight the risk even given the 11% chance of a total disaster.
(17) As an ultimate failsafe, all currently held allied hexes in Sicily, including the ports of Palermo & Trapani will maintain a garrison of at least one div or corps ground unit, thus preventing captured by the OOS Italian 1st inf div.
(18) Also, a successful attack followed by an organized, or reorganized, Royal marine corps in Messina will force the axis to move a unit to the hex south-east of Reggio (directly east of Messina) or see the Royal Marine corps establish a bridgehead in mainland Italy.

The Plan.
(1) CW combine, Free French naval.
(2) Though HQ support from either Alexander (+2) or Wavell (+1.5) was desirable, and risky, it wasn't feasible because of the rain. Any plan for either HQ to move into the mountain hex directly west of Messina resulted in a flip. So, any HQ support was not possible.
(3) RN move #1. Queens in Malta move directly to Homs, Libya, embark the 5-3 London MIL and then move directly to Palermo where the MIL is automatically disembarked.
(4) RN move #2. From Malta, 6 Queen Elizabeth BBs, 2 TRS, CA & CV to 3-box of Italian Coast. 2 TRS load Alexander HQ-I and eng mot div from Malta.
(5) Free French naval move #1. French CA in Homs, Libya loads British 2nd inf div and moves to 3-box of Italian Coast.
(6) Free French naval move #2. French TRS in Trapani to 2-box, East Med and loads 43rd mot div & Bofers AA div in Tripoli.
(7) RAF ground strike (4 air groups/missions) used vs out-of-supply German XXX corps holding Messina. Though, Italian CAP over hex is possible but estimated as unlikely, Italian intercept isn't. So it's expected that this ground strike goes in unmolested. If not, RAF FTR & RN CVP FTR could/will provide escort. (SCRIPT: Though as the axis I know what the allies are planning, if I didn't I estimate that I'd be very unlikely to fly Italian CAP against a CW ground strike over Messina. Therefore, no CAP).
(8) There's a 48.16% chance that the OOS elite German corps will be flipped by the ground strike, which would reduce it's defense factors from 5 to 3, which are doubled because of mountain terrain, and give +2 to the land combat.
(9) CW Land Moves x 3. Royal Marine corps, London MIL in Palermo move and 2nd inf div disembarks to mountain hex directly west of Messina for a total of 12 land factors.
(10) 6 Queen Elizabeth BBs in 3-box will provide shore bombardment. Because of the weather each ship's bombardment is reduced by 1 which means 15 total factors reduced to 9.
(11) The Italians have the possibility of 2 ground support factors if their bomber gets through.
(12) 5 land combat scenarios were examined: (1) Baseline, 5 factors of ground support, no Italian ground support, XXX corps n0t ground struck (i.e., organized). (2) Worse Case, no allied ground support, XXX corps not flipped and +2 Italian ground support. (3) Best Case. XXX corps flipped and no Italian ground support. (4) XXX corps flipped and +2 Italian ground support. (5) XXX corps not flipped and no ground support.
(13) If the RAF manages to flip XXX corps (48.15%) then the chance of success is 66 to 79% with chance of disaster (loss of all three attackers) of 6 to 7.8%.
(14) If the RAF doesn't flip XXX corps (51.85%) then the chance of success reduces greatly to 32 to 37.8% with the chance of disaster of 14.6 to 16.5%.
(15) For higher ups (i.e., PM Churchill & Sir John Dill) all this is boiled down into two numbers: Pr{Success}=53% & Pr{disaster}=11%.
(16) Effectively, Operation Dog Run is a coin flip with about a 1 in 10 chance of total disaster. However, the gains by far out weight the risk even given the 11% chance of a total disaster.
(17) As an ultimate failsafe, all currently held allied hexes in Sicily, including the ports of Palermo & Trapani will maintain a garrison of at least one div or corps ground unit, thus preventing captured by the OOS Italian 1st inf div.
(18) Also, a successful attack followed by an organized, or reorganized, Royal marine corps in Messina will force the axis to move a unit to the hex south-east of Reggio (directly east of Messina) or see the Royal Marine corps establish a bridgehead in mainland Italy.
