Beer in England ale, which was now seen as an endangered style. English drinkers became more interested in imported beers during the 1970s and 1980s, partly as a result of increased foreign travel, and partly because of promotion of the subject by beer writers such as Michael Jackson, with his 1977 "The World Guide to Beer". Newly popular foreign brands included Beck's from Germany, Heineken and Grolsch from the Netherlands, Leffe and Hoegaarden from Belgium, Peroni from Italy, San Miguel from the Philippines, Budweiser and Sierra Nevada from the US, and Corona Extra from Mexico. A number of bars specialise in imported beer,
Beer in Iceland trade dispute with Spain and Portugal; the two countries threatened to stop importing Iceland's salt cod if they did not allow for the importing of Spanish and Portuguese wines. Public support for the complete ban eventually began to fade and, in a 1933 referendum, 57.7% of voters approved lifting the ban. Despite the referendum lifting prohibition, beer was still prohibited from containing more than 2.25% alcohol by volume (well below the 4–5% of an average beer). Some full-strength beer was smuggled into the country or produced by homebrewers. Icelanders also worked around the restriction by adding strong alcohol such as