Hundreds of British troops are on the ground as part of relief efforts to help those affected by Hurricane Irma and Jose.
The International Development Secretary Priti Patel says the government's "working at full capacity" in the British overseas territories to deal with the aftermath of last week's hurricanes.
Ms Patel said:
“Our military troops, police officers and aid workers are doing an amazing job on the ground, to get vital supplies to those who need it most. To suggest the UK reacted slowly and is not doing enough is just plain wrong. We are leading the way, and other countries, are now coming to us for help.”
There are now 1,000 UK military troops operating in the region and more than 40 tonnes of DFID aid is being distributed.
On the Turks and Caicos Islands, a team of Royal Marines and Army Commandos were the first military personnel to reach the British Overseas territory.
It was the first time the island had experienced a Category 5 storm, said Virginia Clerveaux, director of Disaster Management and Emergencies.
Many of the islands residents have lost their homes and possessions.
A Royal Air Force C-130J Hercules transport aircraft delivered medical staff and more than 20 Royal Marines from C Company, 40 Commando.
Aid supplies were unloaded, ready to be distributed as part of the Humanitarian Aid and Disaster Relief response.
Since September 8, the Royal Air Force has flown more than 20 sorties within the Caribbean, moving more than 700 passengers into and around the region and delivering more than 70 tonnes of freight to hurricane-stricken communities.
On the island of Anguilla, a Royal Navy Wildcat delivered supplies after a small team of specialists carry out an initial assessment of the damage caused by Hurricane Irma.
Troops are helping with security on the island as well as accessing some of the worst hit areas in need of reconstruction.
59 Commando Squadron from 24 Commando Royal Engineers are supporting communities of the British Virgin Islands.
The specialist Commando engineers have restored power, running water, runway lighting and are repairing the perimeter fence at Terrance B, Lettsome International Airport on the island of Tortola.
Ensuring the airport remains functioning is critical to allow the influx of aid agencies, military personnel and extraction of stranded locals, British Nationals and tourists.
Much of their work during the initial days of the deployment has focused on clearing essential transport routes allowing the movement of people, aid and access for the emergency services.
An American Osprey aircraft is loaded with vital aid on the British Virgin Islands.