In the United Kingdom, the National Canine Defence League called on all dog owners to observe a minute's silence, while the Royal Society for the Prevention of Cruelty to Animals (RSPCA) received protests even before Radio Moscow had finished announcing the launch.
Di Britania Raya, Liga Pertahanan Anjing Nasional menyerukan kepada semua pemilik anjing untuk mengheningkan cipta selama satu menit, sementara Royal Society for the Prevention of Cruelty to Animals (RSPCA) menerima protes bahkan sebelum Uni Soviet selesai mengumumkan keberhasilan misinya.