Giuseppe garibaldi hepled the nationalist cause

Giuseppe Garibaldi hepled the nationalist cause  by capturing most of southern Italy for the king of Sardinia.

Explanation:

The Italian revolutionary Giuseppe Garibaldi was the man whose leadership made possible the unification of Italy for the first time since the time of the Roman emperors. Born in Nice, now in France, he joined the nationalist movement led by the Genoese patriot Giuseppe Mazzini at the time he was about twenty years old.

After the fall of the Roman Empire in the fifth century, Italy fragmented into a number of independent city-states. By the 1830s, many groups, including the Young Italian Society of Mazzini, had begun to claim a unified and independent Italy. Garibaldi, then soldier and guerrilla leader, was the typical young man who would adhere to the cause of Italian freedom. Forced to leave the country in 1834, he spent some time in the United States and fought in the Rio Grande do Sul Rebellion in Brazil in 1836. In 1848, when the revolution broke out in France and Austria, and the people of Italy also rebelled, he returned home and joined the patriots who worked in and around Rome. Forced to flee a second time, he went to the United States, but in 1859 returned to Italy.

On May 11, 1860, Garibaldi landed on the Island of Sicily with a thousand men - known as "The Thousand" or "red shirts", because of the color of the clothes they wore - to begin their military campaign. After conquering Sicily and establishing a provisional government, he joined forces with King of Sardinia, Vittorio Emanuele II, who had annexed Lombardy to his kingdom in 1859. Together they liberated the Italian states, one by one.

the right answer for the question that is being asked and shown above is that: "their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.  " the  participant in european imperialism is being described below is that  their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.