The government said it will legislate "as soon as they can" but may "reassess" its plans if firms make the desired changes sooner.
It comes after masked men gathered in Dover to protest against small boat crossings.
An exercise next year on a scale not seen for a "very long time" will test the UK's preparedness, a minister says.
About 7% of those polled wanted disability benefit cuts, according to the latest British Social Attitudes survey.
Sarah Jones told MPs the violence sparked by the arrival of 120 migrants in a single dinghy was "intimidating and thuggish".
The deal could see British officials take part in crisis management operations for the first time since Brexit.
John Healey detailed plans to spread growth more widely across the UK, ahead of his first Budget.
Proposals to merge smaller councils to form larger authorities have been paused or withdrawn in a number of areas.
John Healey detailed plans to spread growth more widely across the UK, ahead of his first Budget.
The government condemns "thuggish behaviour" in the second major anti-migrant protest of the weekend.