soleil
War Hero
"Royal Navy submarine HMS Trenchant has broken through the metre-thick ice of the Arctic Ocean to join two US boats on major exercise."
https://www.royalnavy.mod.uk/news-and-latest-activity/news/2018/march/15/180315-iceex-2018
https://www.royalnavy.mod.uk/news-and-latest-activity/news/2018/march/15/180315-iceex-2018