Born in Romano di Lombardia, in the province of Bergamo, in 1905, he started working at a young age as a laborer at the Breda workshops and immediately became interested in politics, joining the Italian Communist Party (PCI) in 1925.
In 1936, he left for Spain as a volunteer in the Garibaldi Battalion, fighting against the Francoist regime alongside Spanish partisans on the Madrid front.
[1] When France was occupied by the Nazis, Suardi fought alongside the French Resistance, and was able to return to Italy after the fall of fascism to participate in the liberation war.
During a mission in Piedmont, he fell victim to an ambush mistakenly set by the partisans from Novara, sustaining some injuries.
[1] An active political member of the Communist Party, from June 1945 to December 1946, he was secretary of the provincial federation of Bergamo, then went on to hold institutional positions in Tuscany.