This is only an ending scene of the two making a promise, presumably that they would stay together, although this is just assumed along with their marriage and children.
In the present time, the term refers to the industry of.
However, the anti-peace rebels have already infiltrated the train, and after it leaves the station they stage an attack.
Back at the post office, Violet reveals to her co-workers that the letters would be delivered to Anne on her subsequent birthdays for the next fifty years and is overcome with emotion at the thought of young Anne having to live all alone after her mother's untimely death.
Violet arrives by parachute and rescues him.
As he wanted Violet to live a life like a normal girl, instead of a tool, he told Claudia to announce that he is missing from the war and declared dead.