After LDP's election victory of House of Representatives which was held on December 16, 2012, president Abe became Japan's prime minister again. The supports of Abe's new cabinet continue to rise so far while this is different from the past experience that new cabinets always lose their support in the second month. Consequently, Abe's advocacies, such as constitutional amendment and Self-Defense Forces' reorganization to National Defense Force, draw broad attention from home and abroad. Although the supports of Abe's new cabinet keep elevating, the cabinet also faces potential or significant challenges and its stability will determine whether the constitutional amendment and Self-Defense Forces' reorganization will succeed or not.