The European Commision for Human Rights "critised" the British Govt over the blanket protests which preceeeded the hunger strikes during I think it would be summer 1980, and in April 1981, 3 Teachta Dail (Irish Ministers) appealed for talks to end the strike without success.Not long after, the Pope's private Secretary visited with Bobby Sands and appealed to the British Govt to negociate a compromise on catagory status. The Govt declined his attempts. Ronald Reagan expressed his "deep concern" at the situation round about the same time.By July 1981 the International Comittee of the Red Cross was lobbying the Govt and America were also urging compromise by both sides.In September of the same year the Labour party passed a motion to actively campaign for a united Ireland by concensus in light of the hunger strikes.In October after the deaths of 10 men the British Govt finally allowed prisoners some of their requests. To my knowledge only the Reupblic of Ireland, the Vatican and the USA officially brought any significant pressure to bear on the British Govt but they were widely condemed after the death of Bobby Sands by the majority of Europe and the ECHR had endless fruitless dealings with them over it.Hope this helps.