The Austrian Chancellor Kurt Schuschnigg wished to pursue ties with Italy, but turned to Czechoslovakia, Yugoslavia and Romania (the Little Entente). To this Hitler took violent exception. In January 1938 the Austrian Nazis attempted a putsch, following which some were imprisoned. Hitler summoned Schuschnigg to Berchtesgaden in February and demanded, with the threat of military action, that he release imprisoned Austrian Nazis and allow them to participate in the government. Schuschnigg complied and appointed Arthur Seyss-Inquart, a pro-Nazi lawyer, as interior minister. To forestall Hitler and to preserve Austria's independence, Schuschnigg scheduled a plebiscite on the issue for 13 March. Hitler demanded that the plebiscite be cancelled. The German Propaganda Ministry issued press reports that riots had broken out in Austria and that large parts of the Austrian population were calling for German troops to restore order. On 11 March, Hitler sent an ultimatum to Schuschnigg, demanding that he hand over all power to the Austrian Nazis or face an invasion. The British Ambassador in Berlin registered a protest with the German government against the use of coercion against Austria. Schuschnigg, realising that neither France nor the United Kingdom would actively support him, resigned in favour of Seyss-Inquart, who then appealed to German troops to restore order. On 12 March the 8th German Wehrmacht crossed the Austrian border. They met no resistance and were greeted by cheering Austrians. This invasion was the first major test of the Wehrmacht's machinery. Austria became the German province of Ostmark, with Seyss-Inquart as governor. A plebiscite was held on 10 April and officially recorded a support of 99.73% of the voters.