Here is compilation of news links( click on the relevant text ) on Navigation Warfare ( GPS jamming/Spoofing ) from Ukraine-Russo War , up to 11 June 2023
Russian forces can jam some of the GPS-guided weapons that the United States has given Ukraine, including Joint Direct Attack Munitions, or JDAMs, according to Business Insider, which cited leaked documents
The report leaked online found that four of nine extended-range JDAMs used by Ukrainian forces had missed hitting Russian targets, possibly due to jamming, and it recommended that the Russian jammers be taken out, Insider reported on Tuesday.
Russia has been thwarting US-made mobile rocket systems in Ukraine more frequently in recent months, using electronic jammers to throw off its GPS guided targeting system to cause rockets to miss their targets, multiple people briefed on the matter told CNN.
Moscow jams GPS signal after “attack on Kremlin”
Forbes : Ukraine Is Spoofing Russian Drones Out Of The Sky