The Army has deployed "specialist equipment" to Gatwick Airport as the travel chaos caused by drone activity shows no sign of abating.
It comes as Easyjet has cancelled all of its flights from Gatwick for the rest of the day.
The airline, the biggest operator at the airport, said there was "no indication" when Gatwick would reopen.
Tens of thousands of passengers on several airlines have been disrupted by drones flying over the airport.
In a tweet, the Ministry of Defence (MoD) said Defence Secretary Gavin Williamson had confirmed the military deployment.
He said: "The armed forces have a range of unique capabilities and this isn't something we would usually deploy but we are there to assist and do everything we can so that they are in a position to open the airport at the earliest opportunity."
Gatwick's runway has been shut since Wednesday night because devices have been repeatedly flown over the airfield.
An Easyjet spokesperson said: "We are making every effort to get people to their destination at this important time of the year, but following reports of drones flying over Gatwick Airport, the runway remains closed and all flights are currently suspended."
The airline said it expected disruption to continue into Friday and is advising all passengers to check the status of their flight.
https://www.bbc.co.uk/news/uk-england-sussex-46640033
The police have said that they don't believe it is terror related but that it is a targeted act of disruption.
I have a strong feeling that this is what the next terror attack will look like though. Why go to all the risk of a violent attack when you can shut down a major transportation hub for days and cause millions of pounds in losses with a toy?
And we really need to invest in some tech to prevent this. Apparently other nations have systems that can bring them down by blocking their control signal, how can it be we don't at one of the worlds busiest airports?