 Complete the following phrase:  Many authors, such as Viñas, have pointed out that the decision to transfer the gold reserves outside of Madrid was motivated by the rapid advance of the Army of Africa commanded by Nationalist General Francisco Franco which, since its landing on the Spanish mainland, had incessantly marched forward towards the capital. At the time the decision was taken, the Army of Africa was stationed only 116 kilometres from Madrid, and the efforts made up to that point to halt its advance had not been even partially successful. However, Nationalist forces would not arrive at Madrid until two months later; not because of Republican resistance, but because of Francisco Franco, who decided to deviate his course to aid Nationalist sympathizers in the 