The phrase "additional defence" is correct and usable in written English.
It can be used when referring to extra measures or arguments that provide further protection or justification in a legal or argumentative context.
Example: "The lawyer presented an additional defence to strengthen her client's case against the charges."
Alternatives: "further protection" or "supplementary argument".
Lines of Syrian army troops circle Qerdaha, adding an additional defence to the natural protection offered by the mountain it perches on, overlooking Latakia.
And they say the drug would provide an additional defence against HIV, and would not be used simply as an alternative to safe sex.
Recently, YouTube has offered an additional defence to criticism from the music industry, claiming that 80% of music listeners haven't been buyers – they've listened for free through the radio or television, but they haven't bought albums or downloads.
No additional defence is necessary.
For the observation of intraspecific competition, the behaviours used for solo females were augmented with additional defence behaviours from a second pilot study (Table 1).
The bill contains $165bn of additional defence spending and $131bn in domestic spending, including funding for healthcare, infrastructure and tackling the US opioid crisis, reports Reuters news agency.
"We're predicting that even our temporary additional defences are very likely to be over-topped," said Alison Baptiste, the agency's flood manager for the south-east region.
(For a graphic, click link.reuters.com/qyh73t) Aerts estimates storm surge barriers could cost between $10 billion to $17 billion, while additional defences such as levees and adding sand to eroding beaches could cost another $10 billion to $12 billion.
Minefields were deployed surrounding these strongpoints, and additional defences were present in the Courseulles harbour.
In the aftermath of the revolt, additional defences were built around the route down to the sea.
The Act allows the promisor to list additional defences that can be used against the third party in the contract, which can be used to get around the Law Commission's decision not to give the promisor equal defences against both the third party and promisee by simply listing those additional defences the promisor would like access to.
