So I had this idea for a TL that has a Rosa Luxemburg delivering a speech in 1905 that does more than it did OTL. Instead of just having polish workers go on strike it does what she had wanted and starts a Polish uprising/revolution (though bloodier than she might have wanted). The Germans seeking to capitalize on this event start secretly shipping weapons to the revolting Poles. The Russians discover this and declare war on Germany, Germany declaring war France, Austria-Hungary declaring war on Russia and France ect. So is it possible?