Strike Warrior 21 will run from May 8-20 with some of the ships departing from Leith and Rosyth ports.
Ten nations - nine from NATO -will take part, bringing 31 warships, three submarines, 150 aircraft and approximately and 13,400 military personnel including 1,500 ground troops to military ranges across the country, and to maritime exercise areas off the north and west coasts of Scotland.
They will practice a wide range of capabilities across land, sea and air in co-ordinated joint operations with other allied nations.
Port visits to Rosyth and Leith will be kept to a minimum as vessels are expected to arrive at both ahead of the exercise, which is part of the final preparations for the first deployment of the UK’s Carrier Strike Group (CSG) next month.
HMS Queen Elizabeth - the Royal Navy’s Fleet Flagship - sits at its centre and will deploy shortly after its completion.
During the fortnight, participants will be faced with a period of increasing political and military tensions, along with a huge range of realistic military tasks such as: intelligence gathering and reconnaissance; anti-smuggling and counter-terrorism operations; humanitarian assistance and evacuation operations.
The participating NATO nations will be the UK, USA, Denmark, France, Germany, Latvia, The Netherlands, Norway, Poland; Australia is the non-NATO participant.
All units involved in the exercise will observe Covid 19 control measures, such as a general requirement for 14-day quarantine periods before personnel can embark in the ships of the UK Carrier Strike Group.