Russian army as good as the US army?????

The Polish submarine ORP Jastrząb was mistakenly sunk by the British destroyer HMS St Albans and minesweeper HMS Seagull. She was attacked with depth charges and made to surface, there she was strafed with the loss of five crew and six injured, including the commander, despite yellow recognition smoke candles.
27 June- a group of RAF Vickers Wellingtons bombed the units of 4th County of London Yeomanry, British 7th Armoured Division and the British 3rd Hussars during a two-hour raid near Mersa Matruh, Egypt, killing over 359 troops and wounding 560.
On 23 October 1942, during the 2nd Battle of El Alamein, at 2140 hours under the cover of a barrage of 1000 guns, British infantry of the 51st (Highland) Infantry Division advanced towards the enemy lines. However, they advanced too fast into the area of fire from British artillery, causing over 60 casualties.[19]
During the 2nd Battle of El Alamein, RAF fighters bombed British troops during a four-hour raid, causing 56 casualties. The British 10th Royal Hussars were among the victims; they did not know the proper signals to call off their planes.[19]

1944
28 April. Exercise Tiger, a nine-day rehearsal for the D-Day landings on Utah Beach, was marred when troops landed at Slapton Sands during a live firing exercise. American soldiers crossed into an area which was being shelled with live ammunition by the British heavy cruiser HMS Hawkins. One source put the number of deaths at 308 American soldiers. A total of 946 American servicemen died during the exercise. The death toll was four times greater than in the action at Utah Beach itself.

5?6 June, several RAF Avro Lancasters attempting to bomb the German artillery battery at Merville-Franceville-Plage attacked instead friendly positions, killing 186 soldiers of the British Reconnaissance Corps and devastating the town. They also mistakenly bombed Drop Zone 'V ' of the 6th Airborne Division, killing 78 and injuring 65.[39]
6 June 1944, RAF fighters bombed and strafed the HQ entourage of 3rd Parachute Brigade (British 6th Airborne Division) near Pegasus Bridge after mistaking them for a German column. At least 15 men were killed and many others were wounded.[40]
8 June 1944, a group of RAF Hawker Typhoons attacked the 175th Infantry Regiment, 29th Infantry Division (United States) on the Isigny Highway, France, causing 24 casualties.[41]
On 27 July 1944, the former HMS Sunfish was sunk by a British RAF Coastal Command aircraft in the Norwegian Sea. All crew, including the British liaison staff, were lost. Later investigation revealed that the RAF crew were at fault.[43]
7 August 1944, a RAF Hawker Typhoon strafed a squad from 'F' Company/US 120th Infantry Regiment, near Hill 314, France, killing two men.[44] Around noon on the same day, RAF Hawker Typhoon of the 2TAF was called in to assist the US 823rd Tank Destroyer Battalion in stopping an attack by the 2nd SS Panzer Division between Sourdeval and Mortain but instead fired its rockets at two US 3-inch guns near L'Abbaye Blanche, killing one man and wounding several others even after the yellow smoke (which was to identify friendlies) was put out. Two hours later, an RAF Typhoon shot up the Service Company of the 120th Infantry Regiment, US 30th Division, causing several casualties, including Major James Bynum who was killed near Mortain. The officer who replaced him was strafed by another Typhoon a few minutes later and seriously wounded. Around the same time, a Hawker Typhoon attacked the Cannon Company of 120th Infantry Regiment, US 30th Division, near Mortain, killing 15 men.[44] An hour later, RAF Typhoons strafed 'B' Company/US 120th Infantry Regiment on Hill 285, killing a driver.
8 August 1944, near Mortain, France, RAF Hawker Typhoons attacked two Sherman tanks of 'C' Company, US 743rd Tank Battalion with rockets, killing 5 tank crewmen and wounding 10 soldiers. Later that day, two Shermans from 'A' Company, US 743rd Tank Battalion were destroyed and set ablaze by RAF Typhoons near Mortain. One tank crewman was killed and 12 others wounded.[46]
9 August 1944, a RAF Hawker Typhoon strafed units of the British Columbia Regiment and the Algonquin Regiment, 4th Canadian Armoured Division, near Quesnay Wood during Operation Totalize, causing several casualties. Later that day, the same units were mistakenly fired upon by tanks and artillery of the 1st Polish Armoured Division, resulting in more casualties.
12 August 1944, RAF Hawker Typhoons fired rockets at Shermans of 'A' Company, US 743rd Tank Battalion, near Mortain, France, causing damage to one tank and badly injuring 2 tank crewmen.[47]
13 August 1944, 12 British soldiers of ?B? Company, 4th Wiltshires, 43rd Wessex Division, were killed and 25 others wounded when they were hit by rockets and machine gun attacks by RAF Typhoons near La Villette, Calvados, France.[48]
14 August 1944, RAF heavy bombers hit Allied troops in error during Operation Tractable causing about 490 casualties including 112 dead. The bombings also destroyed 265 Allied vehicles, 30 field guns and two tanks. British anti-aircraft guns opened fire on the RAF bombers and some may have been hit.
17 August 1944, RAF fighters attacked the soldiers of the British 7th Armoured Division, resulting in 20 casualties, including the intelligence officer of 8th Hussars who was badly injured. The colonel riding along was badly shaken when their jeep crashed off the road.[49]
14?18 August 1944, the South Alberta Regiment of the 4th Canadian Armoured Division came under fire six times by RAF Spitfires, resulting in over 57 casualties. Many vehicles were also set on fire and the yellow smoke used for signalling friendlies was ignored by Spitfire pilots. An officer of the South Alberta demanded that he wanted his Crusader AA tanks to shoot at the Spitfires attacking his Headquarters.[50]
On 27 August 1944, a minesweeping flotilla of Royal Navy ships came under fire. At about noon of the 27th, HMS Britomart, Salamander, Hussar and Jason came under rocket and cannon attacks by Hawker Typhoons of No. 263 Squadron RAF and No. 266 Squadron RAF. HMS Britomart and HMS Hussar took direct hits and were sunk. HMS Salamander had her stern blown off and sustained heavy damage. HMS Jason was raked by machine gun fire, killing and wounding several of her crew. Two of the accompanying trawlers were also hit. The total loss of life was 117 sailors killed and 153 wounded. The attack had continued despite the attempts by the ships to signal that they were friendly and radio requests by the commander of the aircraft for clarification of his target. In the aftermath the surviving sailors were told to keep quiet about the attack. The subsequent court of enquiry identified the fault as lying with the Navy, who had requested the attack on what they thought were enemy vessels entering or leaving Le Havre, and three RN officers were put before a court martial. The commander of the Jason and his crew were decorated for their part in rescuing their comrades. At the time reporting of the incident was suppressed with information not fully released until 1994.[51][52][53]
12 September 1944, a group of RAF Hawker Typhoons destroyed two Sherman tanks of the Governor General's Foot Guards, 4th Canadian Armoured Division in the vicinity of Maldegem, Belgium, killing 3 men and injuring 4. One Canadian soldier from the 4th Canadian Armored Division wounded recalled this incident saying "....while so deployed the tanks were suddenly attacked, in mistake, by several Typhoon aircraft. Lt. Middleton-Hope's tank was badly hit, killing the gunner Guardsman Hughes, and the tank was set on fire. Almost immediately Sgt. Jenning's tank was similarly knocked out by Typhoon rockets. Meanwhile the Typhoons continued to press home their attack with machine guns and rockets, and, while trying to extricate the gunner, Lt. Middleton-Hope was blown off the tank. In this tragic encounter Guardsmen Baker, Barter, and Cheal were seriously wounded."[54]
Canadian artillery units were rushed in to support the retreating American forces as a counterattack against the advancing German Army during the early stages of the Ardennes Offensive. When American troops were making a retreat north of the Ardennes, the Canadians mistook them for a German column. The Canadian artillery guns opened fire on them, resulting in 76 American deaths and many as 138 wounded.[55]

1945
On 23 January 1945, a group of Royal Air Force fighters strafed the assault gun platoon (105mm Sherman tanks) of US 743rd Tank Battalion, near Sart-Lez-St.Vith, Belgium, killing 6 men and wounded 15.[57]
The March (1945) ? On 19 April 1945, at a village called Gresse, a flight of RAF Typhoons strafed a columns of Allied POWs during the death march after mistaking them as retreating German troops, killing 30 and fatally injured 30 more.
Cap Arcona incident ? This incident has been referred to as "the worst friendly-fire incident in history"[58] On 3 May 1945, the three ships Cap Arcona, Thielbek, and the SS Deutschland in Lübeck Harbour were sunk in four separate, but synchronized attacks with bombs, rockets, and cannons by the Royal Air Force, resulting in the death of over 7,000 Jewish concentration camp survivors and Russian prisoners of war, along with POWs from several other allies.[58][59] The British pilots were unaware that these ships carried POWs and concentration camp survivors,[60] although British documents were released in the 1970s that state the Swedish government had informed the RAF command of the risk prior to the attack.[61][62]