Dee ihe na-aga n'ihu maka paragraf a - Mgbe Romania kwupụtara agha megide Austria-Hungary na 15 August 1916, e nyere Mackensen iwu nke ndị agha ọtụtụ mba, na General Emil von Hell dị ka onye isi ndị ọrụ, nke ndị Bulgaria, Ottoman, Austro-Hungarians na ndị Germany. Ha gbakọtara n'ebe ugwu Bulgaria ma mesịa kwalie banye Dobruja. Ka ọ na-erule September 8, ha ewerewo nnukwu ụlọ elu abụọ ahụ
n'akụkụ aka nri nke osimiri Danube, nke mbụ n'otu ụbọchị site n'ike nke ọnụ ọgụgụ ndị agha nọ n'okpuru ya, bụ ndị ndị agha Mackensen meriri. Mgbe ahụ, otu ndị agha German na Austro-Hungarian, nke Falkenhayn nyere iwu, mebiri na Wallachia site na Vulkan Pass na Transylvanian Carpathian Mountains ebe Mackensen gafere Danube site na ijide bridgeheads n'akụkụ aka ekpe iji kpuchie ndị injinia Austro-Hungarian ndị wuru ogologo mmiri mmiri. A manyere ndị agha Romania na ndị ha na ha jikọrọ aka bụ́ ndị Russia ịlaghachi azụ n'agbata ihe ndị ahụ. Mgbe ọnwa atọ nke agha gasịrị, ndị Central Powers weghaara ụzọ abụọ n'ụzọ atọ nke ókèala nke Alaeze Romania. Isi obodo Romania, Bucharest bụ ndị Central Powers weghaara na 6 Disemba 1916, n'ụbọchị ncheta ọmụmụ ya nke 67. Ọ nọkwasịrị n'elu ịnyịnya ọcha ma banye n'obí eze Romania.