Jonathan Beale, the BBC's defence correspondent, said: "The MoD says those British military personnel embedded with US, Canadian and French forces and under their chain of command have been authorised to take part in those nations' operations.
But Riyadh now is running a ten-nation operation against the Houthis--highlighted by Washington's support.
Prospects that a 26-nation operation would lead to quick results appeared to be dwindling, however, as investigators confirmed they were focusing on the remote southern Indian Ocean after failing to find any traces of the jet further north.
In 2011, Italian Harriers, operating from Giuseppe Garibaldi, worked alongside Italian Eurofighters and aircraft of other nations during Operation Unified Protector, as part of the 2011 military intervention in Libya.
"For nearly a decade, we have remained committed to working with partner nations through Operation CARIBBE, preserving the safety and security of Canadians, and suppressing trafficking in international waters".
"It seems you can't throw a rock these days without hitting a nation state surveillance operation," he said.
As a victory over a suspected rogue nation-state, Operation Iraqi Freedom was a triumph.
This approach has proved its merits in confronting ethnic and religious violence in East Timor (where Australia led an Asean peacekeeping and nation-building operation) and in the continuing European peacekeeping presence in Kosovo.
It is a reason for preparing the U.S. public for a potentially long, costly nation-building operation and for enlisting as many allies as possible to share the burden.
This nation-wide operation is led by the Ministry of Health, with the support of the United Nations Children's Fund (UNICEF) and the World Health Organisation (WHO).
Nothing symbolizes the dual character of this new alliance — half military cooperation, half vehicle for exporting the American approach to national security — than the 33-nation special operations exercise known as Flintlock, a yearly occurrence that was hosted by Senegal in January, and this year was the largest ever of its kind.
