The only official definition of Fascism comes from Benito Mussolini, the founder of fascism, in which he outlines three principles of a fascist philosophy.
1."Everything in the state". The Government is supreme and the country is all-encompasing, and all within it must conform to the ruling body, often a dictator.
2."Nothing outside the state". The country must grow and the implied goal of any fascist nation is to rule the world, and have every human submit to the government.
3."Nothing against the state". Any type of questioning the government is not to be tolerated. If you do not see things our way, you are wrong. If you do not agree with the government, you cannot be allowed to live and taint the minds of the rest of the good citizens.
The use of militarism was implied only as a means to accomplish one of the three above principles, mainly to keep the people and rest of the world in line. Fascist countries are known for their harmony and lack of internal strife. There are no conflicting parties or elections in fascist countries.
Nazi Germany was extreme Fascism, better examples of fascist countries were Mussolini's Italy, Iraq, Iran, and many middle eastern countries.