After coming under criticism for his statements that Germany's military missions abroad also served to secure trade, critics accused him of advocating the use of "gunboat diplomacy". He subsequently stated that his comments referred to piracy off the coast of Somalia. Köhler stated that there was no substance to accusations that in the interview he had overstepped his formal role by favoring an unconstitutional position. After getting no substantial support in the dispute, Köhler stepped down on 31 May 2010, issuing a statement saying "I declare my resignation from the Office of President, with immediate effect." The resignation was considered a "surprise", and both pundits and opposition politicians labeled it "an overreaction". The following days he was criticized for not being able to handle criticism while being a rigorous critic himself. His unprecedented act of immediate resignation was also considered showing a lack of respect for his position.