Chapter XV: Section 8: , Clause 15. To provide for calling forth the militia to

execute the laws of the Union, suppress insurrections and repel invasions._

Clause 16. _To provide for organizing, arming and disciplining the militia, and for governing such part of them as may be employed in the service of the United States, reserving to the States respectively the appointment of the officers, and the authority of training the militia according to the discipline prescribed by Congress._

Number of the Militia.--All able-bodied male citizens of the United States and males between eighteen and forty-five years of age who have declared their intention to become citizens are regarded as the militia force of the country. As a matter of fact, there are at present only about 100,000 men enrolled in this service. But in the case of an emergency the President may compel the governors of the various States to furnish the troops needed. The militia may thus be called into service, under their own State officers, for a period of nine months. The War of 1812 and the Civil War furnish the best illustrations of the enforcement of this provision.

Volunteers of 1898.--We should note here the manner in which
men were secured for the war against Spain. We see, according to
Clause 15, that the militia may be called out only for the purposes
of executing the laws of the Union, suppressing insurrections, and
repelling invasions. Now, in the case given, the war was to be
conducted in foreign territory, and President McKinley called for
200,000 volunteers. It was understood, however, that preference
would be given to those volunteers who were already members of the
organized militia.

V. LOCATION OF THE CAPITAL.