
France already has the BeNeLux sub-tree, but most nations have x2 sub-trees. I think Algeria would make for a fun 2nd sub-tree.
UK has South Africa and India.
Italy has Hungary and Romania
Sweden has Finland and Norway
Japan has Thailand and Malaysia
Algeria would provide France with some Soviet / Russian stuff. Just like the other nations sub-trees have provide them with Soviet / Russian stuff. Algeria also used to be apart of France 1830-1962, so these countries already have a long / close history together.
An Algerian sub-tree would also provide France with a 5th GEN fighter that being the Su-57E. and a good CAS / bomber being the Su-34E Something France wont be able to get themselves. Not to mention the Su-30MKA would make a nice rank 8 premium (which France still doesn’t have) Just like the Russian and Chinese SU-30 MK2 / MKK.
Also for helicopters we would get the Mi-28NE and Mi-24 mk3

