World War I McGuinness' time in the Canadian militia was brief. By August 1914 he had joined the
Royal Navy where he served as part of Admiral
Reginald Bacon's Dover patrol off the coast of
Cameroon. However, McGuinness
deserted in 1916 upon learning of the
Easter Rising. Unable to find a way back to Ireland, McGuinness joined the
South African Army and fought in the
East African campaign. In 1916 McGuinness was captured by the German
Schutztruppe of Colonel
Paul von Lettow-Vorbeck, but was later able to escape them.
Irish War of Independence McGuinness finally returned to Derry in 1920, and upon arrival threw himself into the ongoing
War of Irish Independence. Although McGuinness was viewed as an eccentric, having brought a monkey back from Africa to Derry, Following a failed bank raid in the
Glenties in
County Donegal, McGuinness was captured by British forces in June 1921 and charged with the murder of Inspector Robert Johnson in Glasgow, Scotland which had occurred the previous month. However, McGuinness was able to escape from
Ebrington Barracks before any serious case could be brought against him. His guards thought he was too weak to escape so they paid little attention to him. A local Derry priest, Friar Coyles, claimed that McGuinness escaped by being smuggled out in a coffin After passing sentence, the German judge wished McGuinness, "better luck next time". The incident caused an uproar back in the United Kingdom. In July 1921, McGuinness was again sent to Weimar Germany by
Liam Mellows to purchase more weapons.
Gun-running with Frieda In November 1921, McGuinness jokingly claimed to have established the first-ever "Irish navy" after he successfully purchased a
tugboat named "Frieda" in
Hamburg, Germany with funds supplied by
Robert Briscoe, Using the experience of the Frieda and Waterford as a template, or 1500 rifles, 2000 pistols and 1.7 million rounds of ammunition. Unfortunately for the Anti-Treaty forces, they were never able to make use of the shipment, as just one month after the landing Anti-Treaty IRA Chief of Staff issued a ceasefire order, bringing an end to the Civil War. The arms brought abroad by the Hanna would be seized by the
National Army. ==1920s==