The country size.

The size of japan 145,925 sq miles 377,944 km2

The country's population.

Japan's population is 127.6 million this was in 2012

How well educated is Japan's population?

1,760,442 in kindergartens;
7,226,911 in elementary schools;
3,748,319 in junior high schools;
3,809,801 in senior high schools;
250,065 in junior colleges (usually two years);
2,803,901 in universities (four years) and graduate schools;
57,875 in technical colleges;
786,135 in special training schools;
and 189,570 in other types of schools.

As you can see japan has a really big thing for education.

How large and well equipped are Japan's forces?

"Army of the Greater Japanese Empire", was the official ground-based armed force of the Empire of japan, from 1871 to 1945. It was controlled by the imperial army general staff office and the Ministry of war, both of which were nominally subordinate to the Emperor of japan as supreme commander of the army and the navy. Later an Inspectorate general of Military (Army) Aviation, became the third agency with oversight over the army. During wartime or national emergencies, the nominal command functions of the emperor would be centralized in an Imperial general headquarters, an ad-hoc body consisting of the chief and vice chief of the Army General Staff, the minister of war, the chief and vice chief of the Naval General Staff, the inspector general of military aviation, and the inspector general of military training.

What are Japan's physical features?

Japan has a lot of mountains like the famous mountain mt Fuji that mountain is a simple of japan of how beautiful it is.

How productive is Japan's economy?

Japan's economy isn't growing it's just in one place at its time so far the economy has problems for the amount of people that live in japan so there economy isn't really that productive.