You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "when did the nuclear stockpile of the united states peak?" whose answer is 1967.
Each document should contain about 30 words, and these documents should contain useful information.

Query: peak us nuclear stockpile
Useful Output:

Doc 1: At its peak, the United States had more than 31,000 nuclear weapons in its stockpile. Through various arms control agreements and unilateral
Doc 2: At the beginning of 2021, the US Defense Department maintained an estimated stockpile of 3,800 nuclear warheads for delivery by 800
Doc 3: The United States is still reducing its nuclear stockpile slowly. France and Israel have relatively stable inventories. But China, India
Doc 4: At its peak, the United States had more than 31,000 nuclear weapons in its stockpile. Now, thanks to various arms control agreements and
Doc 5: U.S. and Russia Hold 88% of the World's Nuclear Weapons​​ The peak of nuclear weapon stockpiles occurred in 1986, with 70,300 warheads during the