Is there any subsidy for the widow after the sacrifice of the soldiers to resist US aggression and aid Korea?

Yes, it varies from place to place.

According to the provisions of Article 40 of the Regulations on Pensions and Preferential Treatment for Military Personnel, disabled soldiers, demobilized soldiers, veterans returning home sick, sacrificing military survivors in the line of duty, renting houses and buying houses shall enjoy priority and preferential treatment in accordance with relevant regulations. The local people's government will help solve the housing difficulties of retirees living in rural areas. Specific measures shall be formulated by the people's governments of provinces, autonomous regions and municipalities directly under the Central Government.

According to the provisions of Article 33 of the Measures for Pensions and Preferential Treatment for Soldiers in Jiangxi Province, if the Red Army veterans, separated Red Army personnel, demobilized soldiers in rural areas and veterans returning home sick die, the civil affairs department of the people's government at the county level where the household registration is located will issue a one-time additional six-month regular quantitative subsidy to their survivors according to the original standard as a funeral subsidy.

Extended data:

Resist US aggression and aid Korea.

Three years of gunfire and five battles, that year, Na Yue, many young volunteer soldiers in their teens and twenties, who were still children in some people's eyes, stepped into the Korean battlefield. About 2.4 million volunteers went to the DPRK to participate in the war, and more than 700,000 immigrant militia went to the DPRK for support. In countless battles with huge equipment differences, some companies have gone to glory under fierce artillery fire.

It was here that they wrapped themselves in light clothes, chewed fried noodles, covered with ice and snow, and carried out a war miracle that shocked the world with the "mule and horse" who had just left the "millet plus rifle" and the "mechanization" of the well-equipped 17 allied forces.

Chinese people's Volunteer Army's 38th Army "Guo Zhongtian Hero Platoon" fought with US Army 1 Battalion in three places, killing 2 15 US soldiers and zero casualties. Liu Guangzi, an ordinary volunteer soldier, captured nearly 100 British prisoners of war in the fifth battle in April195/2000.

Volunteers 188 Division shot down planes with rifles, 1 day shot down five American planes and wounded 13 planes, setting a record for our army to shoot down planes with rifles. Pilot Luo Canghai shot down three American warplanes in 1 minute, creating a miracle in the history of world air combat, which no one can break so far.

Zhang, flying for only 200 hours, shot down more than 3,000 hours, and shot down more than 50 Hitler Nazi German fighters in World War II, which can be described as American pilot Davis and ace pilot.

Three years of war volunteers have created one miracle after another in the history of war. The powerful United Nations Army is unwilling to give up China. The two sides stopped fighting near the 38th parallel and reached a deadlock.

As Chairman Mao said, it was a complete victory, and the war washed away the humiliation suffered by China in the modern century. The people of China paid a heavy price overnight, and nearly 200,000 heroes died heroically in a foreign country.

References:

Wuning, China —— Does the widow have a living allowance after the death of the veteran who fought against US aggression and aided Korea?

References:

Baidu Encyclopedia-Regulations on Pension and Preferential Treatment for Soldiers