Depends on the era. If you're talking about WW2, China affected Japans Political development through national competition and past differences. If you're talking about Modern, it would be the same answer. However, if you meant Ancient, then the correct answer would be the war economy system that propagandized the situation to gain base war support.
Answer:
He wants to invest in equipment to mine more diamonds to sell.
Explanation:
It makes more sense to me, personally, but if he wanted to sell more diamonds which is lots of money he could get more equipment to be better efficient. If he sold equipment as well he'd be putting himself out of business by giving his customers the chance to get diamonds themselves. Hope this helps :)
They had to cut their armies down to just 100,000 men and basically had to get rid of their air force and navy.