USSR - 2 squads of paratroopers
USA - 4 squads of paratroopers
Germany - 3 squads of paratroopers
Japan - 1 squad of paratroopers with thrash weapon (bolt action rifle)
It is more than a year since Japan has received its only squad of paratroopers.
Please add premium paratroopers for Japan 
Continuing the discussion from Empire Of Japan Full Tech Tree by Emperor Yoshiro Decree:
I have suggested 2 squads for Japanese para 1 for money and one as event reward
I think they should readd the Type 100 SMG Para for a Paratrooper squad
I also think in terms of potential paratrooper weapons we have the Type 1 TERA Rifle, Type 2 TERA Rifle, and the Type 99 LMG Para
I think the Type 99 LMG Sniper could work well as an event/ premium squad but not as a Paratrooper squad because I think most Paratrooper squads should have weapons that were designed for Paratroopers
We have Paratroopers. There are weapons made specifically for them. It’s a crime to NOT match them!
A limited production version of the Type 99 was produced for paratroopers, but had no known special designation. It had a detachable stock and a forward-folding pistol grip. For deployment, the barrel and butt were detached from the gun, the pistol grip and bipod folded, and the entire set packed into a carrying bag.[9]