| 1. | Before the crash Fred had flown over 61 sorties on intruder operations.
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| 2. | In early 1943 the squadron began to switch over to night intruder operations.
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| 3. | On the 21st, seven aircrews relocated to B�ne in readiness for intruder operations over Sardinia.
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| 4. | The first such intruder operation took place on the night of 23 / 24 March 1943.
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| 5. | Defence soon gave way to offensive operations; fighter sweeps and intruder operations took place over France.
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| 6. | Haviland served throughout the war, doing tours as an instructor, intruder operations and bomber support.
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| 7. | Jagd-Division ( 3rd Fighter Division ), that a intruder operation be allowed to take place.
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| 8. | Intruder operation was conducted by P-47s and accurately preceded the bombers to strike fighters at Villaorba airfield.
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| 9. | He also coordinated his efforts with No . 100 Group RAF, which were engaged in intruder operations over occupied Europe.
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| 10. | The end of August found a large detachment stationed in Cyprus with the main task of doing night intruder operations over Rhodes.
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