The United States has revealed new details about China's secret nuclear test in 2020 and announced plans to resume its own nuclear testing. Christopher Yeaw, a senior State Department official, said on Tuesday at the Hudson Institute that the US will return to testing on an "equal basis" to match "opaque" activities by China. He clarified, "Equal basis doesn’t mean we’re going back to Ivy Mike-style atmospheric testing in the multi-megaton range." Yeaw pointed out that any US response depends on prior standards set by China or Russia. This announcement follows the expiration of the New Strategic Arms Reduction Treaty (New START) on February 5, leaving the world without a binding nuclear arms control deal. President Donald Trump has rejected Russia’s offer to extend the treaty, seeking a new agreement that also includes China. US Undersecretary of State Thomas DiNanno recently said China failed to disclose a 2020 nuclear test. The US detected a seismic event of magnitude 2.75 on June 22, 2020 near China’s Lop Nur nuclear test site, confirming suspicions of a secret test. This move and China’s opaque actions have pushed the US to consider resuming its nuclear tests to maintain parity with other nuclear powers.