The decision to undertake a cross-channel invasion in 1944 was taken at the Trident Conference in Washington in May 1943 .

Operation `` Python '' , a follow-up to Operation `` Trident '' , was the code name of a naval attack launched on West Pakistan 's port city of Karachi by the Indian Navy during the Indo-Pakistani War of 1971 .

After the first attack during Operation `` Trident '' on the Port of Karachi , Pakistan stepped up aerial surveillance of its coast as the presence of large Indian Navy ships gave Giving the impression that another attack was being planned Arranging .

Operation Trident was an offensive operation Military_operation launched by the Indian Navy on Pakistan 's port city of Karachi during the Indo-Pakistani War of 1971 .

Operation Trident saw Self_motion the first use of anti-ship missiles in combat in the region .

Trident was followed up by Operation Python three days later .

Duggan was under investigation Criminal_investigation by Operation Trident , a subdivision of the Metropolitan Police .

It marks Recording the highest death Death toll involving Participation a Hawker Siddeley Trident .