The New START treaty between the US and Russia, which limits strategic nuclear arms, is set to expire, leaving both countries without control over their nuclear arsenals. Signed in 2010, the treaty aimed to reduce nuclear forces and allowed for inspections, but these ended in 2020 due to the pandemic. Tensions have escalated, with Russia suspending participation and modernizing its arsenal, while the US also invests in its nuclear capabilities. China, not part of any agreements, is rapidly expanding its nuclear stockpile. The situation raises concerns about a new arms race and the need for inclusive arms control negotiations.