War posters from World War I and II encouraged the people of the nations at war to buy war bonds, plant gardens, ration, enlist, or work extra hard for the sake of the war effort USA: University of North Texas 2011-20).  

Zum 100. Jahrestag des 1. Weltkriegs hat das britische Staatsarchiv eine eigene Website eingerichtet, die die online zugänglichen Quellen zu erschließen hilft (2014).

300 politische Karikaturen aus dem englischen Satire-Magazin Punch, das von 1888 bis 2002 erschien (2014)

Illustrierte Chronologie des World War I Museum (Kansas, USA 2014)

The Northwestern University Library’s World War II Poster Collection contains 338 posters issued by the U.S. government in an attempt to garner support for the war effort between 1941 and 1945 (2016).

In this curriculum unit, students reconsider the events leading to U.S. entry into World War I through the lens of archival documents (EDSITEment, USA 2014).

In this interactive from the British newspaper, the Guardian, ten historians from ten different countries offer a brief history of the First World War (2015).

Imperialism, World War I, Weimar Republic (bilingual, Englisch)

Portal zum 1. Weltkrieg, commemorating the centenary of World War One (2018-21).

Aus: The Past Online (Bildungsserver Rheinland-Pfalz 2015-20)