- l ived : ▁five ▁days ▁later , ▁on ▁ 2 9 ▁September , ▁Bulg aria ▁capit ulated ▁in ▁the ▁face ▁of ▁the ▁adv ancing ▁Al lied ▁forces ▁( see ▁also ▁the ▁Arm ist ice ▁of ▁Sal onica ). ▁ ▁The ▁treat y ▁was ▁den ounced ▁in ▁October ▁ 1 9 1 8 ▁by ▁the ▁Marg h il oman ▁government . ▁Roman ia ▁re - enter ed ▁the ▁war ▁on ▁ 1 0 ▁November ▁ 1 9 1 8 , ▁the ▁day ▁before ▁it ▁ended ▁in ▁Western ▁Europe , ▁and ▁the ▁ 1 9 1 8 ▁Tre aty ▁of ▁Buch ar est ▁was ▁null ified ▁by ▁the ▁Arm ist ice ▁of ▁ 1 1 ▁November ▁ 1 9 1 8 . ▁In ▁ 1 9 1 9 , ▁Germany ▁was ▁forced ▁in ▁the ▁Tre aty ▁of ▁Vers a illes ▁to ▁ren ounce ▁all ▁the ▁benefits ▁provided ▁by ▁the ▁ 1 9 1 8 ▁Tre aty ▁of ▁Buch ar est . ▁The ▁territorial ▁trans fers ▁to ▁Austria - H ung ary ▁and ▁Bulg aria ▁were ▁ann ul led ▁by ▁the ▁Tre aty ▁of ▁Saint - G erm ain - en - L aye ▁( 1 9 1 9 ), ▁and ▁the ▁Tre aty ▁of ▁Neu illy - sur - Se ine ▁( 1 9 1 9 ), ▁respectively ; ▁and ▁the ▁Tre aty ▁of ▁T rian on ▁( 1 9 2 0 ) ▁settled ▁Roman ia ' s ▁border ▁with ▁Hung ary . ▁ ▁Maps ▁ ▁Image ▁gallery ▁ ▁See ▁also ▁Roman ia ▁during