The French government has formally rejected a proposal by the UK’s Reform UK party to deploy the Royal Navy to intercept migrant boats in the English Channel and return them to France or Belgium. The policy, branded as Operation Fortress by Reform UK leader Nigel Farage, was unveiled this week as a potential military-led strategy to stop small boat crossings. French officials were quick to dismiss the plan, stating that any such unilateral action would constitute a clear violation of French sovereignty and international maritime law.
Under the proposed plan, British naval vessels would shadow migrant dinghies, intercept them at sea, and escort the occupants back to French or Belgian shores. However, French authorities emphasized that British military vessels cannot enter French territorial waters or return migrants to their territory without explicit bilateral agreement. They noted that existing cooperation between the UK and France has already contributed to a decline in the number of Channel crossings during 2026.
Downing Street has also distanced itself from the proposal. Government officials pointed out that the Royal Navy previously led similar operations in 2022, which did not result in a significant or sustained decrease in crossings. Current government strategy continues to prioritize the Border Force for maritime operations, citing recent successes in preventing nearly 60% of attempted crossings and increasing the number of removals of those without a legal right to be in the UK.
Legal experts and former military commanders have also raised significant concerns regarding the feasibility of the plan. Critics argue that the Royal Navy’s primary assets are configured for national defense and are not suited for the logistical and humanitarian demands of migrant transport. Furthermore, there is no legal framework that would compel France to accept the return of migrants intercepted by British forces in this manner, making the proposal a potential source of major diplomatic friction.