Rubuta ci gaba don wannan sakin layi - Yayin da tattaunawar zaman lafiya ke ci gaba, abubuwan da ke faruwa a wasu wurare a Turai ba su tsaya ba. Yayin da Spain ke fama da yakin Mantuan, Sweden ta shiga cikin Yakin Shekaru talatin a Jamus a karkashin Gustavus Adolphus a 1630, wanda Faransa da Holland suka tallafawa. Yaren mutanen Sweden sun yi amfani da sabbin dabarun sojan sama na Dutch (wanda aka inganta tare da ingantaccen dabarun sojan doki) tare da samun nasara sosai a kan sojojin Imperialist fiye da Furotesta na Jamus suka yi kuma don haka suka sami nasarori masu mahimmanci, suna juya yanayin a cikin yaƙin. Duk da haka, da zarar yaƙin da Italiya ta ƙare a shekara ta 1631, Spain ta iya gina dakarunta a arewacin wasan kwaikwayo na yaki har zuwa ƙarfin sake. Cardinal-Infante ya kawo rundunar soja mai karfi, ta hanyar hanyar Mutanen Espanya, kuma a yakin Nördlingen (1634)
wannan rundunar, hade da dakarun mulkin mallaka, ta amfani da dabarun gargajiya na Mutanen Espanya, sun ci nasara da Sweden. Daga nan sai ya yi tafiya zuwa Brussels, inda ya gaji tsohuwar Infanta Isabella wanda ya mutu a watan Disamba na shekara ta 1633. Ƙarfin Spain a Kudancin Netherlands yanzu ya karu sosai.