在今年国庆招待会上，习近平重点谈到这两件大事

Group 1 - The core message of the article emphasizes the importance of historical reflection and future planning as highlighted by President Xi Jinping during the National Day celebrations [3][20][30] - Xi Jinping attended two significant events on September 30, including the Martyrs' Memorial Day ceremony and the 76th anniversary of the founding of the People's Republic of China [5][12] - The Martyrs' Memorial Day ceremony was marked by a solemn tribute to heroes, with Xi Jinping laying a wreath and reflecting on the sacrifices made for the nation [10][19] Group 2 - During the National Day reception, Xi Jinping reiterated the significance of the recent commemoration of the 80th anniversary of the victory in the Chinese People's War of Resistance Against Japanese Aggression, which has invigorated national spirit and patriotism [20][23] - The upcoming 20th Central Committee's Fourth Plenary Session, scheduled for October 20-23, will focus on formulating the 15th Five-Year Plan, which is crucial for achieving decisive progress in socialist modernization [25][27] - The article highlights that the 15th Five-Year Plan period is seen as a key phase for solidifying the foundation of socialist modernization and advancing China's unique modernization efforts [27][30]