tl;dr: Joining NATO in 2004, 2% GDP defense spending, 20 year budget, picking the M4 rifle instead of the Beryl, lists of brigade equipment, buying grenade launchers, demographics and pay, one large squad or two fire teams?
So Hungary, Poland, and the Czech Republic joined NATO in 1999, while Lithuania, Latvia, Estonia, Slovakia, Bulgaria, Romania and Slovenia all joined in 2004. I'll have Serednya Slaviya join in 2004 as well, part of the bloc that formed the Vilnius Group. That lets me start my modernization ten years earlier, and pushes the 2% GDP spending requirement back over the last twenty years.
Belarus is a neighboring state that has seen a generally peaceful history, unlike Ukraine. The only major financial crises it had was the 2008 world economic crash, and a big drop in 2014/15. Its 2023 GDP was $68.86 billion, and averaged $56.79 billion over the last 20 years. With Serednya Slaviya's 2023 GDP at $25.46 billion, the average would come to $20.99 billion over those same 20 years. That comes to just shy of $420 million a year for defense spending, of which 36% goes to procurement for a average of $151.2 million a year.
That is going to have to cover all expenses, not just buying specific hardware. I'll say I can use half my budget for buying military equipment, leaving the other half for basic expenses that occur normally. Going with that half gives me a total of $1.5 billion.
First off is tackling the problems of a rifle. The Beryl is $1,550 per rifle, while going with an HK 416 rifle is $1,580 each. Steyr AUGs price at $1460 each France is selling the FAMAS for a whopper $3,300, though that included a million rounds of ammunition in the order as well. M4 carbines meanwhile price in at $713 per, which is a damned hard price to ignore. With needing to buy 114,600 rifles (or sidearms) to equip the whole military, as Daryk said - "price is king" and that means I'm equipping with M4 rifles at a total price of $81.7 million.
Armored Brigade (active)
87 PT-91 ($43.5 million)
38 B1 Centauro ($44.2 million)
29 KTO Rosomak ($72.5 million)
112 M2A2 Bradley ($182.6 million)
112 VAB ($44.8 million)
24 Fennek ($38.4 million)
18 K9 Thunder ($54 million)
6 K239 Chunmoo ($18 million)
12 Shilka (pre-owned)
9 VAB Mephisto ($9 million)
18 2S23 Nona-SVK (pre-owned)
413 UAZ-469 (pre-owned)
Mechanized Brigade (active)
38 B1 Centauro ($38 million)
29 KTO Rosomak ($72.5 million)
138 BMP-1P (pre-owned)
118 VAB ($47.2 million)
24 Fennek ($38.4 million)
18 K9 Thunder ($54 million)
6 K239 Chunmoo ($18 million)
12 Shilka (pre-owned)
9 VAB Mephisto ($9 million)
18 2S23 Nona-SVK (pre-owned)
437 UAZ-469 (pre-owned)
Armored Brigade (reserve)
87 PT-91 ($43.5 million)
38 B1 Centauro ($38 million)
29 KTO Rosomak ($72.5 million)
112 BMP-1P (pre-owned)
112 VAB ($44.8 million)
24 Fennek ($38.4 million)
18 K9 Thunder ($54 million)
6 K239 Chunmoo ($18 million)
12 Shilka (pre-owned)
9 VAB Mephisto ($9 million)
18 2S23 Nona-SVK (pre-owned)
413 UAZ-469 (pre-owned)
Mechanized Brigade (reserve)
38 B1 Centauro ($38 million)
29 KTO Rosomak ($72.5 million)
138 BMP-1P (pre-owned)
118 VAB ($47.2 million)
24 Fennek ($38.4 million)
18 K9 Thunder ($54 million)
6 K239 Chunmoo ($18 million)
12 Shilka (pre-owned)
9 VAB Mephisto ($9 million)
18 2S23 Nona-SVK (pre-owned)
437 UAZ-469 (pre-owned)
Air Force
24 Alpha Jets ($48 million)
1 Avanti ($2 million)
All that comes to a total of $1,511.1 million to modernize the air force, armor, artillery, and cavalry forces, and partially modernize the infantry. I'm keeping the Nona-SVKs despite phasing out the BTR-80 for the VAB, and have partially replaced BMP-1s with M2A2 Bradleys. I figure the remaining BMP-1Ps will be phased out over the next five years, with an additional $632.5 million spent to replace them with more M2A2 Bradleys.
I'm going to have to set up a munitions plant to provide the 120mm mortars to the Nonas and 23mm shells for the Shilkas. Missiles would likely be bought from other countries,
All told, that's 174 PT-91 tanks, 152 Centauros, 116 Rosomak IFVs, 112 Bradleys, 348 BMP-1s, 460 VABs, 96 Fenneks, 72 K9 Thunders, 24 K239 Chunmoos, 48 Shilkas, 36 VAB Mephisto, 72 Nona-SVKs, and 1,700 UAZ-469s. That doesn't count the vehicles in the 'brigade slice' support elements, things like engineering and construction vehicles or regular trucks for motor pools.
Since I'm issuing M4s as the standard rifle, that eliminates the difference between the original Mini-Beryl and Beryl rifles. Everyone, including vehicle crews, gets the 14.5-inch-barreled carbine, which will make things slightly easier for the infantry still using BMPs. Fortunately the effective range difference between a full-length M16A4 and a short M4 is minimal, so there's little need for the larger rifle.
I'll join in with the West in buying
HK's AG36 40mm grenade launcher. How many I'll need is tough to determine properly, but the US bought 71,600 of them for 650,000 personnel, or about one launcher per nine soldiers. Each American infantry squad gets two launchers per squad; I'm only using one launcher per squad with a smaller squad size, so I'll make that one launcher per fourteen soldiers. With 114,600 troops, that comes to 8,200 launchers for a total of $12.7 million on top of the above buying.
EDIT: A bit of demographics; the breakdown for the military is a total of 114,400 personnel. 110,000 are in the army, split evenly between active and reserve. The term of service is 3 years active duty for volunteers. A total of 5.1% of men and 2.9% of women volunteer for military service each year, combined with the careerists 6.2 out of 1,000 population are active duty volunteers. This brings me up to 30,700 personnel serving their first three-year term.
Conscription exists, and lasts for one year without time in the reserves; they form a mobilization pool in time of war to fill gaps in the line forces. The service is egalitarian, with an additional 20% of the age-18 male population and 17% of the female population pressed into military service. Women in uniform are hot, what can I say. That gives me a total of 15,700 conscripts each year to supplement the active duty forces. Conscription mostly works because of the DOSAAF style pre-service training and various activity clubs, so the time in boot camp and training is shortened.
Careerists make up a sizeable portion of the military as well, with 7,630 men and 5,340 women pursuing an active professional military service. That brings me to 12,970 careerists, and totals up 59,400 personnel on active duty for 8.4 out of 1,000.
As far as the reservists go, there's 55,000 personnel making up two SSLF brigades and their support elements. 30,300 men and 24,700 women make up the reserve corps, with a 3.5 year term of service to make up for the lack of conscripts in the reserves. The reserves make up 7.7 out of 1,000 population, with a grand total of 16.2 out of 1,000 people in the country doing military service. It's high, but similar to Kuwaiti numbers so I have a real-world parallel to work off of.
Granted, I'm not nearly as wealthy as Kuwait, which can afford Patriot missile batteries. But I think I'm actually satisfied with the army's purchasing, and their current program of buying up M2A2 Bradleys to replace the BMP-1s.
Pay scales are admittedly low, but it's the best I can do with a military this size. Volunteers average $1,200 a year, while conscripts are paid $800 for their year of service. Career-minded personnel draw an average of $2,400 a year, 60% higher than the average pay for the general population. Reservists bring in $1,000 a year, which is usually supplemented by a day job - the reservists serve on an American style one weekend a month and two weeks a year schedule. Retirees bring down a pension of $1,200 a year on average, depending on their rank at severance with the military.
So with the infantry platoons, I'm still debating and looking for guidance. With four six-man squads in the dismounted platoon, is it better to break them into two smaller equal fire teams of three or one larger squad of six? That doesn't include the platoon leader and a platoon sergeant, and would include three rifle squads and a weapons squad for heavier firepower. There's plenty of firepower to go around, the question is how to organize it. Or
get weird, Singaporean style and go with three teams of two per squad of seven, and make the PLt and PSgt their respective vehicle commanders.