从胜利日到公祭日，我深深明白：作为中国人，我们今日的幸福，从哪里来；我们今日的自豪，有多么 可贵；我们曾经的苦难，有多么深重；我们曾经的奋斗，有多么伟大！ 历史是最好的教科书，也是最好的清醒剂。 国家强盛才能抵御外侮。阅兵场上的钢铁洪流，是和平的盾牌；纪念仪式上的深切缅怀，是奋进的号 角。 每一个脚步都叩击着历史记忆——一名仪仗兵的任务手记 刘家伟 这是我第三次作为仪仗兵参加南京大屠杀死难者国家公祭仪式。 今天早上南京的风很冷。我作为抬花手，擎着花圈从黑色的纪念碑前走过，"遇难者300000"的大字刺目 而沉重。短短几十米的距离，却让我觉得特别漫长，有种莫名的悲伤萦绕在我心头。 3个多月前的9月3日，我作为一名仪仗兵走过天安门广场，光荣地接受祖国和人民的检阅。天安门东西 华表间从敬礼线到礼毕线距离96米，我和战友们要走正步128步。走在那条胜利的道路上，我感觉自己 分外自豪。 作为一名仪仗兵，我喜欢听自己的脚步与大地的回响。因为我们的每一步，都意味着一个特殊的历史时 刻，那沉甸甸的分量总是让我热血沸腾。 我和我的战友，我们这一代人都是有使命的。我们绝不允许历史的悲剧重演。 （新华社南京12月13日电） ...

Group 1 - The event commemorating the 80th anniversary of the victory in the Chinese People's Anti-Japanese War and the World Anti-Fascist War was held in Beijing on September 3rd [1] - The live broadcast of the ceremony was watched by audiences across the country, allowing them to witness the military parade and feel the strength and glory of the nation [1]

Group 1 - The article highlights the significant role of Yu Hai, a former conductor of the PLA Military Band, in the recent military parade, marking his sixth participation in such events [1] - Over 3,000 university students formed a choir, performing classic songs from the wartime era, showcasing the spirit of the Chinese nation [1] - Yu Hai's dedication to precision in military ceremonies is emphasized, reflecting his lifelong commitment to the national anthem and military music [1] Group 2 - The article discusses a past challenge faced during the 1999 parade regarding the timing of the military band's performance, which was resolved through technical improvements rather than using recorded music [2] - The evolution of military music is noted, with the introduction of diverse and artistic compositions, such as "The Ode to the Red Flag," which marked a significant moment in 2009 [2] - The recent parade featured a blend of 15 instruments and 11 parts, symbolizing the new era of China's military strength and cultural identity [2]