World Peace
World peace is possible if enough countries join together as one nation BUT it must be voluntary. Not a conquering empire but a growing group of friends. How that could happen is simple. As established during the USA's expansion period (when territories were regularly being added as States), once a territory reached a certain populations size (at one time only needing 20,000), the territory's government needed only petition the US government for statehood. And this didn't just happen with US territories but independent sovereign nations, such as the Republic of Texas.
After petitioning and a treaty is signed between the country and the USA, the country would then be annexed by the USA as a US territory. It would likely then remain a territory for likely a year or two until new federal elections can be held in that territory to elect US House Representatives and US Senators to the US Congress to represent the new state at the federal level. The one or two years would give citizens in the future state a reasonable amount of time to campaign for those offices. At the same ceremony that officially makes the territory a US state, the newly elected federal politicians would get sworn into office.
As for how this could ensure world peace, the USA would simply be too large and powerful for any other nation to even fantasize about taking it on. The larger the US gets, the smaller the possibility of world war. And this peace-ensuring "empire" could be brought together by...
Music.
All of the following challenges have as their "original" challenge: First weekend mega-concert that calls for their national legislature to petition the United States of America for statehood while allowing their state government (what had been their national government) and local governments to continue to operate as they have been (most being parliamentary governments and thus their governors would be essentially elected in the same way as their prime ministers are currently). The mega-concert must have at least 30 music bands performing at it and take place in or near one of the country's major cities. [SPECIAL NOTE: If you are a concert promoter doing one of these rallies, contact us and we'll try to get Jack to your rally. Please contact us as far in advance as possible so we have a better chance of working your concert/rally into Jack's schedule.]
Also, whenever a new country joins the USA, the State Department relocates its headquarters there to help the new state feel more connected to the US and not ruled by a distant bureaucracy. That and the relocation will give an immediate (though tiny) boost to their state economy, which can only help relations.
NOTABLE COUNTRIES:
England: Relocate the Supreme Court to London. This would be a natural move due to...
Russia: Relocate the "Pentagon" to Moscow. This move would be a good symbolic......
India: Relocate Dept. of Labor's HQ to New Delhi. This is only fitting since if India were...
Poland: As with India, many Americans will be likely surprised that the majority of...
Canada: Relocate HQ of Dept. of Agriculture to Winnipeg. Unlike with the other...
Australia: Relocate Dept. of Treasury's HQ to Alice Springs. Alice Springs is a...
New Zealand: Health & Human Services must relocate its headquarters to Wellington. [Of all the...
Eastern Europe: Countries formerly known as the Eastern Bloc and former provinces of the...
Africa: The most pro-American countries in the world can be found in Africa, especially the...
China: It has a problem. That problem is how to peacefully transition to a democracy. The...
Iran: Possibly the longest shot and most radical idea is for Iran to join the US as a state. Then...
States First Amendment: First US state to pass a state-wide citizen-initiated referendum to force...