ral citizens and committing robberies. A punitive expedition
under the command of General Pershing was quickly sent out to capture
the offenders. Against the protests of President Carranza, American
forces penetrated deeply into Mexico without effecting the object of
the undertaking. This operation lasted until January, 1917, when the
imminence of war with Germany led to the withdrawal of the American
soldiers. Friendly relations were resumed with the Mexican government
and the policy of "watchful waiting" was continued.
THE UNITED STATES AND THE EUROPEAN WAR
=The Outbreak of the War.=--In the opening days of August, 1914, the
age-long jealousies of European nations, sharpened by new imperial
ambitions, broke out in another general conflict such as had shaken the
world in the days of Napoleon. On June 28, the heir to the
Austro-Hungarian throne was assassinated at Serajevo, the capital of
Bosnia, an Austrian province occupied mainly by Serbs. With a view to
stopping Serbian agitation for independence, Austria-Hungary laid the
blame for this incident on the government of Serbia and made humiliating
demands on that country. Germany at once proposed that the issue should
be regarded as "an affair which should be settled solely between
Austria-Hungary and Serbia"; meaning that the small nation should be
left to the tender mercies of a great power. Russia refused to take this
view. Great Britain proposed a settlement by mediation. Germany backed
up Austria to the limit. To use the language of the German authorities:
"We were perfectly aware that a possible warlike attitude of
Austria-Hungary against Serbia might bring Russia upon the field and
that it might therefore involve us in a war, in accordance with our
duties as allies. We could not, however, in these vital interests of
Austria-Hungary which were at stake, advise our ally to take a yielding
attitude not compatible with his dignity nor deny him our assistance."
That made the war inevitable.
Every day of the fateful August, 1914, was crowded with momentous
events. On the 1st, Germany declared war on Russia. On the 2d, the
Germans invaded the little duchy of Luxemburg and notified the King of
Belgium that they were preparing to violate the neutrality of his realm
on their way to Paris. On the same day, Great Britain, anxiously
besought by the French government, promised the aid of the British navy
if German warships made hostile demonstrations in the Channel. Aug
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