and the Government of Finland in regard to the Reciprocal Recognition of Tonnage Measurement Certificates of British and Finnish Ships. ATS 3 of 1925."
潜艇加入战斗行列。 英国作为一个岛国,高度依赖进口。为了生存和战斗,英国每周需要超过一百万吨的进口物资。从本质上讲,大西洋海战涉及到一场吨位战争(英语:tonnagewar); 同盟国为供应英国而进行的斗争,以及轴心国试图阻止商船的流动,阻止英国继续战斗。英国的定量配给(英语:Rationing in the
National Greek Line. 19 October 1925 launched under the name PATRIS II. Tonnage 3.903 grt. Dim. 105.17 x 14.48 x 7.28m. Powered by triple-expansion steam