If you have been in Cumbria and southern Scotland recently, you can't fail to have noticed a lot of military activity.
Thousands of troops from around the world are taking part in a huge military exercise called Operation Joint Warrior.
Hannah McNulty went to see them in action:
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Showers or longer spells of rain. Gales on Sunday
One of the world's most famous locomotives drew huge crowds in Cumbria today, as it arrived after a ten year, £4.2 million, restoration.
One hundred artworks have been donated to an auction, to raise money for victims of flooding in Cumbria.