 Complete the following phrase:  Another big atrocity of this war, immortalised by Picassos emblematic mural, was the bombing of Gernika by German planes, a Biscayne town of great historical and symbolic importance, at Francos bidding. In 1937, the Eusko Gudarostea, the troops of the new government of the Basque Autonomous Community surrendered to Francos fascist Italian allies in Santoña on condition that the lives of the Basque soldiers were respected Santoña Agreement. 