rapidly

Washington has already been providing anti-tank mines to Ukraine, but the anti-personnel land mines - which can be rapidly deployed - are designed to blunt the advances of ground forces.

The number of PAs and AAs, who help doctors, are in the process of being rapidly expanded.

However, the F protein has a delicate structure that changes rapidly from a "pre-fusion" form to a "post-fusion" form when the viruses fuse with cells.

The "bomb cyclone" - as forecasters call it - is caused by air pressure quickly dropping off the coast, which has rapidly intensified the weather system.

She added that forces currently lacked a "clear framework for showing what works, or what needs rapidly to change".