The correct answer is that international volunteers fought on the Republican side in the Spanish Civil War.
The Republican side was formed around the Government, formed by the Popular Front, which in turn was composed of a coalition of Republican parties - Republican Left and Republican Union - with the Spanish Socialist Workers Party, which had joined the Marxists - Leninists of the Communist Party of Spain and the POUM, the Syndicalist Party of anarchist origin and in Catalonia the left nationalists led by Esquerra Republicana de Catalunya. It was supported by the labor movement and the UGT and CNT unions, which also pursued the social revolution. The Basque Nationalist Party had also opted for the republican side, when the republican courts were about to approve the Statute of Autonomy for the Basque Country.
Although it received hardly any external support from the allied powers of the Second World War, due to the International Non-Intervention Committee, the support of the USSR, which together with Mexico together with France and Poland at the beginning of the contest, stand out; they contributed large quantities of military equipment and advisors, notoriously also the support of what were called the International Brigades.
The Crusades were a series of religious and political wars fought
between 1096 and 1291 for control of the Holy Land. Pope Urban II
initiated the First Crusade (1096–1102) in order to aid the Christian
Byzantine Empire, which was under attack by Muslim Seljuk Turks. As a
result of this crusade, Europeans captured Jerusalem in 1099. Muslims
quickly unified against the Christian invading and occupying force and
the two groups battled in subsequent wars for control of the Holy Land.
By 1291 the Muslims firmly controlled Jerusalem and the coastal areas,
which remained in Islamic hands until the twentieth century.
<span>The crusading movement involved men and women from every country in
Europe and touched upon almost every aspect of daily life, from the
Church and religious thought, to politics and economics. It also found
its way into the arts, as patrons and artists from diverse backgrounds
and traditions were brought together to create new forms of expression.
Frescos, mosaics, sculptures, and even coins reflected a blend of
Western (Latin/Catholic) and Eastern (Byzantine/Eastern Christian)
traditions. Crusaders appeared in histories as well as in French and
German epic poetry from the twelfth century, such as the <em>Chanson d’Antioche</em>, an account of the 1098 siege in Antioch.</span>
The crusading movement involved men and women from every country in
Europe and touched upon almost every aspect of daily life, from the
Church and religious thought, to politics and economics.
<span>Christians understood the Crusades as a path to salvation for those
who participated. As the French monk Guilbert of Nogent wrote in his
twelfth century chronicle of the Crusades, “God has instituted in our
time holy wars, so that the order of knights and the crowd running in
its wake… might find a new way of gaining salvation. And so they are not
forced to abandon secular affairs completely by choosing the monastic
life or any religious profession, as used to be the custom, but can
attain in some measure God’s grace while pursuing their own careers,
with the liberty and in the dress to which they are accustomed.” Those
who “took up the cross” were recipients of both <em>spiritual</em> and <em>earthly</em>
rewards. The spiritual reward was the indulgence, or the forgiveness,
of sins. The earthly rewards included plunder from conquest, forgiveness
of debts, and freedom from taxes, as well as fame and political power.
Crusaders did not only fight for control of the Holy Land; they also
worked to secure the Church’s power in Europe. Like the wars against the
Muslims, these conflicts were promoted by various popes in Christ’s
name and led by crusaders who took vows and received special privileges
and indulgences. The “enemies” of the Church in Europe included people
who were not Christians. It also included Christians who were labeled
heretics, that is, people who challenged the official teachings of the
Church or who questioned the pope’s power and authority.</span>
<span>Millions of people, Christian and non-Christian, soldiers and
noncombatants lost their lives during the Crusades. In addition to the
enormous loss of life, the debt incurred and other economic costs
associated with the multiple excursions to the Middle East impacted all
levels of society, from individual families and villages, to budding
nation-states. The wars also resulted in the destruction of cities and
towns that lay in the crusaders’ wake. In his <em>Decline and Fall of the Roman Empire</em>,
Edward Gibbon refers to the Crusades as an event in which “the lives
and labours of millions, which were buried in the East, would have been
more profitably employed in the improvement of their native country.”</span>
