In 2017, the High Court ruled the sale of arms sales to Saudi Arabia from the UK were lawful after seeing secret documents, amid campaigns from activists against the sales.
Members of the Royal Air Force are currently deployed to Saudi Arabia giving support to Royal Saudi Air Force aircrew. Twenty-six British military personnel were on secondment in the country last year.
When asked about the UK's role in the loading and maintenance of weapons for Saudi aircraft participating in operations in Yemen since 2015, Defence Minister Guto Bebb MP replied:
"UK-contracted personnel, including UK military personnel on secondment to BAE Systems, support the safe storage and issue of weapons in accordance with long-standing government-to-government arrangements.
"They do not load weapons for operations in Yemen."