Multiple reports say that nine EU countries have written to European Commission officials, warning that the EU is not ready to fully implement new post-Brexit border controls. The reports describe the rollout of the stricter requirements as incomplete or “botched,” pointing to operational shortcomings ahead of the peak summer travel period next week. One outlet also references public disruption connected with the change, saying that queues have formed at airports after the new procedures were introduced. The overall account across sources is that member states are urging Brussels to address readiness issues, particularly to prevent further disruption for travellers. The reports do not provide specific technical details of the delays or name the nine countries, but they consistently describe the same core development: a formal warning from multiple capitals to the EU about implementation status and timing. The story is framed around concerns that the current pace and preparation could affect travel flows during the upcoming holiday season.