Trade can connect an empire because trade is a very basic aspect of advancement in a civilization/empire
When Alexius I Komnenoi implored the pope (Urban II) for help, he meant it to reconquer the lost Byzantine lands (and therefore return in to their de facto ruler, a.k.a., the Byzantines). Urban however, decided to merely use that as a façade in order to then invade the Muslims, and retake the holy land.
He also saw the wanted to unite Christianity as a whole (All the sects at the time, Orthodoxy, Catholicism, Paulicianism, Iconoclasts, etc. into a single conglomerate, fighting a common enemy.)
Answer:
Both Communism and Socialism believe that individual citizens are not the top priority
The correct answer is Germany.
During World War I, Germany attempted to send the Zimmerman Telegram to Mexico. In this telegram, the Germans asked Mexico to invade the United States. The Germans asked of this because they knew if the United States was fighting with Mexico, they would not get involved in World War I. This would increase the chances of German success in this war.
The Zimmerman Telegram, however, was intercepted by allied forces and given to the American government. After reading this telegram, the American government declared war on Germany, essentially having the exact opposite outcome that the Germans were hoping for.