Some info on Poland, though for a 1939 (if not otherwise specified)
Army composed of 30 inf divisions (3rgt, 1art rgt), 11cav brigades(4x4rgt+art division, 7x3rgt + art division), 1mot cav brigade and another in organization (finished during the war).
another 7 inf divisions were to be formed during mobilization as reserve units.
Another ~40 battalions were independent, most of them KOP (in theory militarized border guards, in fact ordinary inf battalions and cav companies, only under Internal Affairs Ministry, tasked with protecting border with Soviet Union)
Poland had 211 light tanks (~132 7TP, 38 Vickers E, 49 Renaut R35), 102 Renault FT, ~500 tankettes and 100 armoured cars (In 3 battalions and 37 companies)
On 1st march 39 (almost at normal peace numbers) polish land forces had 282 877 men, with additional 30 000 in KOP
At peace regular units had strength of about 30%, KOP was at ~80%.
To this should be added ~85 battalions of Obrona Narodowa - militia units organized into brigades and half brigades (they were formed from 1937), in 1939 some were reformed into reserve inf battalions (for ex in 55th reserve inf Division) while others were attached to inf divisions and cav brigades.
Inf division was composed of:
3 Inf regiments @3 battalions
@1000 men (3212 in rgt)
1 light arty rgt @3divisions (2+1 or 1+2 - 30 75mm guns and 12 100mm howizers or 15 + 24)
engineer battalion
AA battery (4x40mm)
cav company (scouts)
field hospital (~2company size)
signal company
cavalry regiment was similar to inf battalion in numbers
Cav OOB in 1936
2nd Cav division (3 brigades @2 regiments)
9 brigades @2 regiments
5 brigades @3 rgt
1 brigade @1 rgt
In 1936 Poland had 170-180 Renault FT (a lot were sold to Spain later), 38 Vickers E, ~400 tankettes, 100 ACs. Also first 7TP were in production from 1935, though those were twin turret MG tanks, many were later (from 1937?) rebuilt into standard version (single turret 37mm gun)
During 1936 production of 37mm AT guns started. In 1939 each inf rgt had a company of 9 ATGs (for 27 total in division), while cav rgt got 4 ATG platton (for 14-18 total in brigade)
AA batteries were formed from 1937
10th cav brigade was motorized in 1937, though plans were formed since 1923 - Poland was pioneer using motorized units - during polish soviet war (1920) improvised motorized units were formed, but limited number of trucks and cars limited this force to 2 inf battalions with artillery. Unfortunately low number of motor vehicles were major problem for Poland esp as the numbers fell rapidly during great depression. in 1939 there were only around 35 000 trucks and cars registered in Poland, many of them in the military.
