07/09/2026
Good Morning from a warm and sunny part of the Costa Blanca. My thoughts and prayers are still with the suffering and distress caused by the climate event in Nepal. As I make that my priority I have just been discussing the new tactic of the small boat crossings being illustrated by the huge protests and chaos in Portsmouth. Why is the UK Government not using The Navy to stop these high seas thugs? I have my question ready for the chat bot. ' 'Why have the UK Royal Navy if not to stop the small boat crossings?'
The short answer: because the Royal Navy is not legally allowed to “stop” small boats in the way people imagine — and because its core purpose is national defence, not immigration enforcement.
But the longer answer is more revealing, and it shows why this issue frustrates so many people.
1. The Royal Navy did take command of Channel operations — but only to manage crossings, not prevent them
In April 2022 the UK government gave the Ministry of Defence “military primacy” over small‑boat operations (Operation ISOTROPE). The Royal Navy became the lead agency coordinating Border Force, Coastguard and other assets.
But the mission was explicitly defined as:
Identify migrant boats
Safely intercept them
Bring people into the Home Office system
Not to turn them back, block them, or stop them leaving France — because doing so would violate international maritime law.
2. Why the Navy cannot simply “stop” the boats
a) International maritime law forbids pushbacks
Under UNCLOS and SOLAS, any vessel — including a warship — has a legal duty to rescue people in distress. Small dinghies in the Channel are always considered “distress vessels.”
Therefore, the Navy cannot:
Tow them back to France
Block them
Ram them
Force them to turn around
This is why even during military primacy, the Navy’s role was humanitarian and logistical, not coercive.
b) The UK cannot operate in French waters
Most launches happen just off the French coast. The Navy cannot intervene until the boats are already committed to the crossing.
c) Warships are not designed for this job
A defence minister confirmed in 2024 that Royal Navy warships are not optimised for small‑boat interception and will not be used for that purpose.
They are built for:
Anti‑submarine warfare
Escorting merchant shipping
Monitoring Russian and Chinese naval activity
Protecting undersea cables
NATO operations
Not for policing rubber dinghies.
3. So what is the Navy for?
a) National defence
This is the core mission: protecting the UK from hostile states, submarines, spy ships, and threats to critical infrastructure.
Example: HMS Iron Duke monitoring Russian task groups near UK waters.
b) Maritime security
The Navy handles:
Protection of trade routes
Counter‑terrorism
Anti‑piracy
Safeguarding undersea cables
Monitoring “grey‑zone” activity by Russia and China
Fisheries protection
Drug and weapons trafficking
Small‑boat migration is only one part of a much wider maritime security picture.
c) Humanitarian and search‑and‑rescue support
The Coastal Forces Squadron received the Firmin Sword of Peace for its work rescuing migrants and keeping shipping lanes safe.
This shows the Navy does play a role — but it is humanitarian, not enforcement.
4. The real reason the Navy cannot “stop” the crossings
Because the crossings are not a military problem.
They are:A legal problem (asylum law, maritime law)
A diplomatic problem (France cooperation)
A criminal problem (smuggling gangs)
A political problem (UK immigration policy)
5. Bottom line
The Royal Navy exists to defend the UK — not to perform immigration control.
Even when placed in charge of Channel operations, it was legally restricted to rescue and coordination, not deterrence or pushback.
Stopping small boats requires political decisions, legal changes, and international agreements — not warships.
Today's Human Podcast:Why Does UK Have Armed Forces?
and discussed
Why Does UK Have Armed Forces? with Graham Smith 7.9.26@vincetracy and discussed ...