Missing the opportunity is part of the recent trip of the Vietnamese Ambassador to the US Ha Kim Ngoc to Arizona with tears and smile reunions with American veterans who participated in the war in Vietnam. Nam, but I still believe that I will have the opportunity to meet, or at least hear them directly sharing memories that I will never forget during my military service in the Vietnam battlefield, the consequences. about the persistent spirit of the war still continuing to haunt them day by day but could not be overcome easily. And above all, those are the good feelings and specific actions of those who have stood on the other side of the battle line to contribute to promoting the better and better relationship between the US and Vietnam. For me, that day has come after patiently waiting and once again my heart is filled with emotions when I hear the choked sob of the old American veteran. The image of him, Congressman Noel Campbell, who participated in the war in South Vietnam, in Ambassador Ha Kim Ngoc’s emotional story always haunts and touched me. It was a soldier who, after 52 years, had yet to overcome the barriers of his soul and did not dare to return to Vietnam, he was a man “with a pale face, red eyes, water, trembling lips, just stand there, don’t say anything ”when he mentioned Vietnam and met the Vietnamese in the first country. So I decided to write to him hoping to hear him, a witness of history, share the story of his own life since joining the war in Vietnam on the occasion of Vietnam’s 45th anniversary. five days of liberation of the South, reunification of the country and the 25th anniversary of the normalization of the Vietnam-US relations.