The amphibious assault ship HMS Bulwark entered Malta this morning to assist Malta with security for the Valletta summit tomorrow and on Thursday. It will also be present for the Commonwealth Heads of State Government meeting at the end of the month.
The Bulwark can deploy helicopters and commandos should the need arise.
The UK is also deploying the frigate HMS Somerset, which will be in international waters surrounding Malta. RAF fighters are expected to be based in Sicily.
Four Typhoons were in Malta earlier this month.
The Valletta Summit will bring together more than 40 heads of government from the EU and African countries to discuss migration.
CHOGM will group the Queen and the heads of government of of the Commonwealth.