US expansionism, its purchase of...
In Japan, the instability which had...
The threat posed by the Alaska...
Canada quickly expanded as Britain...
From the mid-1850s the Australian...
While the Canadians were expanding...
In 1874, gold was discovered in the...
The 1849 Mexican-American War had...
By the 1870s polar exploration was...
By 1883, Chile was the clear victor...
In the Canadian northwest, tensions...
In April 1885 the United States...
