Joining the Queen, others members of the royal family, the Prime Minister (pictured below), political leaders and Commonwealth dignitaries on Whitehall in central London, Amy-Jo Battersby participated in the march during the National Service of Remembrance.
Speaking with Premier before the service, the 23 year from Yorkshire said: "Most soldiers will agree, it's the one time in the year you're almost given permission to grieve and to really work through some of the things that you've seen and dealt with, and remember the friends that are not there anymore."
Amy-Jo, who joined the Royal Corps of Signals (an information, technology and communications unit) in 2009, was among 23 people representing the Salvation Army at the March Past the Cenotaph.
She said: "I was the first to volunteer because I think this a really important thing especially for me but just in general for the country to remember the damage that war does and prevent that happening again in the future.
While serving in Afghanistan, Amy-Jo felt called by God to leave the British Army and she began her training in September 2015 to become a Salvation Army Officer.
Amy-Jo went on to say: "As Christians, we can lead the way in bringing a lot of love to the world and I think that's really important as part of our act of remembrance, that we remember to love one another rather than cause war and stir hatred."
Listen to Amy-Jo Battersby speaking with Premier's Alex Williams: