Anne Marie Trevillian, odeakwụkwọ mba Britain maka azụmaahịa mba ụwa, kwupụtara na mgbasa ozi ọha na eze na Machị 22 oge mpaghara na United States na Britain erutela nkwekọrịta na ịkagbu nnukwu ụtụ isi na ígwè Britain, aluminom na ngwaahịa ndị ọzọ. N'otu oge ahụ, UK ga-akagbukwa ụtụ isi mmegwara na ụfọdụ ngwaahịa America n'otu oge. A kọrọ na akụkụ US ga-ekwe ka tọn 500000 nke British Steel banye n'ahịa US na-enweghị tarifu kwa afọ. Ihe dị ntakịrị: dịka "Isiokwu 232" si kwuo, United States nwere ike ịtụ ụtụ isi 25% na mbubata ígwè na 10% tarifu na mbubata aluminom.