Or you can simply do what the Chinese are already doing to secure resources, especially e.g. in Africa - buy them, and set up Chinese owned companies to do the development projects.
China is using its cash reserves from all that manufacture of goods for the globalised economy much as Britain used its money as "gold soldiers" in the Napoleonic era.
Western governments give aid as cash money, which the officials squirrel away in Switzerland, usually...
Chinese aid is done by a Chinese company that actually makes the dam, lays the roads, builds the mines or whatever the aid package was supposed to do. And they buy Chinese parts, trucks etc, thus helping the Chinese economy. Experts are Chinese, labour is provided by the host. The Chinese way of doing aid projects does bring benefits to both sides - unlike the western gifts of cash tend to, IMHO.
The Chinese armed forces are
defensive, they have no need to go out invading their neighbours. They are not particularly large in percentage terms, just appear so in total.
But the country and population is huge. Same goes for India - army looks large in totality, but not when seen as a %age of the teeming population.
Taiwan - just wait, and the errant child will be reunited to the fold as with Hong Kong. It may be 50 years hence - which is just a blink in the Chinese view of timescales.
Tibet - already integrated with China by the simple expedient of exporting settlers.
The Chinese work in the long term - a decade is just a tick of the clock.
They are not a militarily adventurous nation, and never have been. They are content to hold onto the "Middle Kingdom".
But they have though been invaded by "foreign barbarians" many times, or have had periods of anarchy when the central government has lost control. The WW2 warlord period being the last time, and in Chinese terms it was yesterday.
That scenario is what the Chinese armed forces are there to avoid. The Chinese value stability, and abhor chaos. So their leaders favour a strong stable centralised government, where change is managed in a slow and steady planned manner - whether the old Imperial system or the current Party one and they
do not like democracy ("chaos").
So - the likelihood of a "Chinese horde" going on the rampage is a little above nil, really. Just do not invade them or get into a border dispute about land that they consider to be "Han".
And since this thread is now getting onto Political chat - if someone does not produce a "what if" scenario out of it, best to let it die off. We do not have a political chatter forum, and don't want one either.
If there is a campaign or scenarios - then we can move it to the campaigns & scenarios sub-forum.
cheers
Andy