ents of the
Imperial forces, and also to gather intelligence about the
ex-Confederates who had crossed the Rio Grande. On information
furnished by these scouts, I caused General Steele to make
demonstrations all along the lower Rio Grande, and at the same time
demanded the return of certain munitions of war that had been turned
over by ex-Confederates to the Imperial General (Mejia) commanding at
Matamoras. These demands, backed up as they were by such a
formidable show of force created much agitation and demoralization
among the Imperial troops, and measures looking to the abandonment of
northern Mexico were forthwith adopted by those in authority--a
policy that would have resulted in the speedy evacuation of the
entire country by Maximilian, had not our Government weakened;
contenting itself with a few pieces of the contraband artillery
varnished over with the Imperial apologies. A golden opportunity was
lost, for we had ample excuse for crossing the boundary, but Mr.
Seward being, as I have already stated, unalterably opposed to any
act likely to involve us in war, insisted on his course of
negotiation with Napoleon.

As the summer wore away, Maximilian, under Mr. Seward's policy,
gained in strength till finally all the accessible sections of Mexico
were in his possession, and the Republic under President Juarez
almost succumbed. Growing impatient at this, in the latter part of
September I decided to try again what virtue there might be in a
hostile demonstration, and selected the upper Rio Grande for the
scene of my attempt. Merritt's cavalry and the Fourth Corps still
being at San Antonio, I went to that place and reviewed these troops,
and having prepared them with some ostentation for a campaign, of
course it was bruited about that we were going to invade Mexico.
Then, escorted by a regiment of horse I proceeded hastily to Fort
Duncan, on the Rio Grande just opposite the Mexican town of Piedras
Negras. Here I opened communication with President Juarez, through
one of his staff, taking care not to do this in the dark, and the
news, spreading like wildfire, the greatest significance was ascribed
to my action, it being reported most positively and with many
specific details that I was only awaiting the arrival of the troops,
then under marching orders at San Antonio, to cross the Rio Grande in
behalf of the Liberal cause.

Ample corroboration of the reports then circulated was found in my
inquiries regardi