So I've made a list of all the forces at the start of all this. Basically, the rules are simple. If you're fighting in a place - let's say Harondor - and you're attacked by Haradrim, you can use all the troops in Harondor, and say that you call for reinforcement from an adjacent territory, such as Ethir Anduin or South Ithilien. This doesn't count as a normal message for help, and they arrive in one day (so 5-10 minutes). There's no killing one or two people, it's always platoon, company, etc. I shall be counting in terms of platoons (companies if it's a bad defeat, and battalions if you're whipped). Here goes.
GONDOR
Total: 25,000
Minas Tirith - 10,000
Osgiliath - 3,000 (10 vessels)
N. Ithilien - 500
S. Ithilien - 500
Anorien - 500
Cair Andros - 2,000
Emyn Arnen - 100
Ethir Anduin - 500
Pelargir - 1,000 (50 vessels)
Lossanarch - 200
Lebennin - 500
Belfalas - 800
Tolfalas - 100
Dol Amroth - 1,000 (30 vessels)
Dor-en-Ernil - 300
Larnedon - 100
Morthond Vale - 500
Erech - 1,000
Anfalas - 300
Pinnath Gelin - 900
Harondor - 1,000
ROHAN
Total: 11,500
Edoras - 1,000
Westfold - 2,000
Gap of Rohan - 500
Hornburg - 2,000
West Emnet - 2,000
East Emnet - 500
Eastfold - 2,000
Dunharrow - 500
The Wold - 800
Dunland - 200
ELVES (all Elven forces are listed here, but they don't all answer to one guy)
Total: 18,300
Forlindon - 2,000
Harlindon - 2,000
Forlond - 200 (20 vessels)
Harlond - 200 (20 vessels)
Mithlond - 1,000 (100 vessels)
Tower Hills - 100
Rivendell - 800
Lothlorien - 2,000
Caras Galadhon - 3,000
Thranduil's Halls - 5,000
Northern Mirkwood - 2,000
DWARVES (three clans of the Orocarni are still outside the rule of Thalin, and their number - 6,000 - is not listed here)
Total: 19,300
Erebor - 10,000
Ered Luin - 300
Thorin's Halls - 1,000
Ered Mithrin - 200
Orocarni - 2,000
Aglarond - 800
Iron Hills - 5,000
NORTHMEN
Total: 9,500
Dale - 3,000
Esgaroth - 1,000
Dorwinion - 1,000
East Bite - 1,000
Plains of Rhovanion - 2,000
Beorn's Halls - 500
Vale of the Anduin - 1,000
MORDOR
Total: 116,000
Barad-dur - 20,000
Morannon - 8,000
Udun - 18,000
Isenmouthe - 8,000
Durthang - 4,000
Minas Morgul - 10,000
Cirith Ungol - 1,000
Gorgoroth - 30,000
Nurn - 3,000
The Eastern Desolation - 500
Lithlad - 2,500
Dol Guldur - 10,000
Southern Mirkwood - 1,000
ANGMAR
Total: 27,000
Carn-dum - 10,000
Ettenmoors - 5,000
Trollshaws - 1,000
Rhudaur - 8,000
Mountains of Angmar - 3,000
GOBLINS
Total: 34,800
Mt. Gundabad - 11,000
Weather Hills - 800
Ered Mithrin - 8,000
Withered Heath - 2,000
High Pass - 2,000
Moria - 10,000
Ered Nimrais - 1,000
HARADRIM
Total: 53,000
Umbar - 8,000 (100 vessels)
Karna - 5,000
Near Harad - 10,000
Far Harad - 10,000
Southern Forests - 8,000
Harondor - 2,000
Greater Harad - 10,000
EASTERLINGS/KHAND
Total: 56,000
Agasha Dag (Central-Western Rhun) - 20,000
Lagasthavuld (North-Western Rhun, Superstormfur commands these troops and they are not listed in the total) - 10,000
Gathod (South-Western Rhun) - 8,000
Emyn Rhunen - 1,000
Orocarni Plateau - 10,000
Lower Khand - 8,000
Upper Khand - 6,000 (see the note on Super in Lagasthavuld)
Pezarsan - 4,000
Siakan - 5,000
HOBBITS
Total: 2,600
Hobbiton/Bywater - 600
East Farthing - 500
Buckland - 400
South Farthing - 600
Michel Delving - 500
BREE-LAND
Total: 2,900
Bree - 800
Staddle - 600
Combe - 600
Archet - 500
Chetwood - 400
DUNEDAIN
Total: 3,000
Evendim - 600
Fornost - 1,000
North Downs - 1,000
Brandy Hills - 30
Anuminas - 20
Weathertop - 10
Rivendell - 50
Tower Hills - 50
Trollshaws - 100
Lone Lands - 30
South Downs - 40
Bree - 10
Tharbad - 60
ISENGARD (only later, as atm Saruman is nice-nicey nice)
Total: 15,500
Isengard - 15,500
WILD MEN
Total: 9,000
Dunland - 7,000
Minhiriath - 1,000
Enedwaith - 500
Eryn Vorn - 500
GONDOR
Total: 25,000
Minas Tirith - 10,000
Osgiliath - 3,000 (10 vessels)
N. Ithilien - 500
S. Ithilien - 500
Anorien - 500
Cair Andros - 2,000
Emyn Arnen - 100
Ethir Anduin - 500
Pelargir - 1,000 (50 vessels)
Lossanarch - 200
Lebennin - 500
Belfalas - 800
Tolfalas - 100
Dol Amroth - 1,000 (30 vessels)
Dor-en-Ernil - 300
Larnedon - 100
Morthond Vale - 500
Erech - 1,000
Anfalas - 300
Pinnath Gelin - 900
Harondor - 1,000
ROHAN
Total: 11,500
Edoras - 1,000
Westfold - 2,000
Gap of Rohan - 500
Hornburg - 2,000
West Emnet - 2,000
East Emnet - 500
Eastfold - 2,000
Dunharrow - 500
The Wold - 800
Dunland - 200
ELVES (all Elven forces are listed here, but they don't all answer to one guy)
Total: 18,300
Forlindon - 2,000
Harlindon - 2,000
Forlond - 200 (20 vessels)
Harlond - 200 (20 vessels)
Mithlond - 1,000 (100 vessels)
Tower Hills - 100
Rivendell - 800
Lothlorien - 2,000
Caras Galadhon - 3,000
Thranduil's Halls - 5,000
Northern Mirkwood - 2,000
DWARVES (three clans of the Orocarni are still outside the rule of Thalin, and their number - 6,000 - is not listed here)
Total: 19,300
Erebor - 10,000
Ered Luin - 300
Thorin's Halls - 1,000
Ered Mithrin - 200
Orocarni - 2,000
Aglarond - 800
Iron Hills - 5,000
NORTHMEN
Total: 9,500
Dale - 3,000
Esgaroth - 1,000
Dorwinion - 1,000
East Bite - 1,000
Plains of Rhovanion - 2,000
Beorn's Halls - 500
Vale of the Anduin - 1,000
MORDOR
Total: 116,000
Barad-dur - 20,000
Morannon - 8,000
Udun - 18,000
Isenmouthe - 8,000
Durthang - 4,000
Minas Morgul - 10,000
Cirith Ungol - 1,000
Gorgoroth - 30,000
Nurn - 3,000
The Eastern Desolation - 500
Lithlad - 2,500
Dol Guldur - 10,000
Southern Mirkwood - 1,000
ANGMAR
Total: 27,000
Carn-dum - 10,000
Ettenmoors - 5,000
Trollshaws - 1,000
Rhudaur - 8,000
Mountains of Angmar - 3,000
GOBLINS
Total: 34,800
Mt. Gundabad - 11,000
Weather Hills - 800
Ered Mithrin - 8,000
Withered Heath - 2,000
High Pass - 2,000
Moria - 10,000
Ered Nimrais - 1,000
HARADRIM
Total: 53,000
Umbar - 8,000 (100 vessels)
Karna - 5,000
Near Harad - 10,000
Far Harad - 10,000
Southern Forests - 8,000
Harondor - 2,000
Greater Harad - 10,000
EASTERLINGS/KHAND
Total: 56,000
Agasha Dag (Central-Western Rhun) - 20,000
Lagasthavuld (North-Western Rhun, Superstormfur commands these troops and they are not listed in the total) - 10,000
Gathod (South-Western Rhun) - 8,000
Emyn Rhunen - 1,000
Orocarni Plateau - 10,000
Lower Khand - 8,000
Upper Khand - 6,000 (see the note on Super in Lagasthavuld)
Pezarsan - 4,000
Siakan - 5,000
HOBBITS
Total: 2,600
Hobbiton/Bywater - 600
East Farthing - 500
Buckland - 400
South Farthing - 600
Michel Delving - 500
BREE-LAND
Total: 2,900
Bree - 800
Staddle - 600
Combe - 600
Archet - 500
Chetwood - 400
DUNEDAIN
Total: 3,000
Evendim - 600
Fornost - 1,000
North Downs - 1,000
Brandy Hills - 30
Anuminas - 20
Weathertop - 10
Rivendell - 50
Tower Hills - 50
Trollshaws - 100
Lone Lands - 30
South Downs - 40
Bree - 10
Tharbad - 60
ISENGARD (only later, as atm Saruman is nice-nicey nice)
Total: 15,500
Isengard - 15,500
WILD MEN
Total: 9,000
Dunland - 7,000
Minhiriath - 1,000
Enedwaith - 500
Eryn Vorn - 500