Generally since the end of the cold war NATO compatibility has been a requirement in military procurements. The only exceptions that come to mind is that in the

Generally since the end of the cold war NATO compatibility has been a requirement in military procurements. The only exceptions that come to mind is that in the early/mid 90'ies they bought a bunch of ex-DDR equipment at close to scrap prices, and in the mid-90'ies they bought the Buk air defence missile system from Russia (also very cheaply), AFAIU essentially to settle some outstanding debts from the cold war era bilateral trade deals.