The 2012 US presidential election saw both major party candidates strongly criticize China in their campaigns. They accused China of unfair trade practices and blamed it for the loss of American manufacturing jobs. This China-bashing was an easy way for candidates to appeal to voters. Meanwhile, references to Japan during the campaign were sparse, despite its importance as a US ally. Japan's new prime minister, Yoshihiko Noda, has worked to strengthen the US-Japan alliance but faces challenges over the US military presence on Okinawa. Sino-Japanese relations significantly deteriorated in 2012 due to a territorial dispute over the Senkaku/Diaoyu islands, resulting in widespread anti-Japanese protests and violence in China.