Based on world war 1... As your chilling on the duckboards as an american soldier you check your calendar 1917 october 29th you see couple of british soldiers chilling on the vickers machine gun as you see the thick fog across no mans land you got startled by a french men "So you are an american?" You respond with a nod as he sits down and chats with you..you feel a bit paranoid but you kept focus on talking to him as the thick fog settles in you grasp your springfield rifle in paranoia