A heated political debate has begun in Washington after US Defense Secretary Pete Hegseth used the phrase “no quarter” during a press briefing at the Pentagon. Critics say the words may signal a call for extreme military action that could break international law. Democratic Senator Mark Kelly of Arizona strongly criticized the remark. Kelly served in the US Navy before entering politics. He warned that the phrase carries a serious meaning in military history. Kelly said the words “no quarter” are not just strong language. In military terms, the phrase can mean refusing to take prisoners. It suggests killing enemy fighters instead of capturing them. The senator said such an order would violate the laws of war. He also warned it could place American troops in greater danger during future conflicts. Kelly shared his concerns on social media. He wrote that a command to give “no quarter” would break the law of armed conflict. He added that it would also be an illegal order if soldiers followed it in battle. According to a transcript of the Pentagon briefing, Hegseth said US forces would continue pushing forward against enemies. During the remarks, he used the phrase “no quarter, no mercy for our enemy.” Critics say that statement raised serious legal concerns. Military experts note that the phrase has a specific meaning in international law. The rule comes from the Hague Convention of 1899. That agreement sets limits on how wars are fought. It bans orders that declare enemy forces will not be spared. A later update, the Hague Convention of 1907, made the rule even clearer. It states that declaring “no quarter will be given” is strictly forbidden. International humanitarian law groups also warn against the practice. The International Committee of the Red Cross explains that ordering no survivors is not allowed under global rules of war. Legal experts say these protections exist to limit suffering during armed conflict. Soldiers who surrender or are captured must be treated as prisoners of war rather than killed. The debate around Hegseth’s words comes at a tense moment in global politics. During the same briefing, the defense secretary spoke about the situation in Iran. Hegseth claimed Iran’s new supreme leader, Mojtaba Khamenei, had been wounded and possibly disfigured. He suggested the leader might struggle to rule effectively. Iranian officials rejected those claims. An Iranian source said the injuries were minor. Another official stated the leader was still capable of carrying out his duties. The dispute between Kelly and Hegseth is not new. Both men are military veterans and have clashed publicly in recent months. Last November, Kelly and several other Democratic lawmakers appeared in a video message aimed at US troops. In the message, they urged soldiers not to follow unlawful orders from the administration of Donald Trump. That message sparked sharp reactions from political leaders. Trump accused the lawmakers of encouraging disobedience within the military. The president also warned that such actions could be treated as serious offenses. His comments added to rising tensions between the White House and Democratic lawmakers. Hegseth later suggested that Kelly should lose his retired military rank. The defense secretary argued that Kelly’s actions damaged military discipline. Afterward, the Pentagon opened a review into the senator. Officials cited a federal law that allows retired service members to be called back to active duty if necessary. That step could allow military authorities to bring a court-martial case. However, the legal process quickly faced challenges in court. In February, a federal judge raised doubts about the case. The judge said he knew of no Supreme Court decision that would support punishing a sitting US senator in this way. The judge also questioned the government’s legal argument. He suggested the claim may go beyond what the law allows. The growing dispute shows how military language can quickly become a political issue. Words used in briefings can carry serious legal and historical meaning. For lawmakers like Kelly, the phrase “no quarter” is not just rhetoric. It touches on long-standing rules meant to guide conduct during war. As the debate continues, the controversy highlights the tension between political messaging and the strict limits set by international humanitarian law.