8 As an effect of rivalry between peoples there is an insensate competition in armaments which, in its turn, becomes the cause of enormous expenditure, diverting large sums of money from the public welfare; and this makes the present crisis more acute. Therefore We cannot refrain from renewing and from making Our own the solemn warnings of Our predecessor (Adhortatio Des le. debut , 1 Aug., 1917) which have, alas! not been heeded, as well as Our own words (Alloc. die 24, Dec., 1930: Litt. Aut. Con vivo piacere , 7 Apr., 1922), We exhort you all, Venerable Brethren, to busy yourselves with the work of enlightening public opinion in this matter, by all the means at your disposal, including both pulpit and press, so that the hearts of men may be turned towards the dictates of right reason, and, still more, to the laws of Christ.
Source: Nova Impendet (Vatican.va)