Dov Yosef listed the problems faced in relieving Jewish Jerusalem as:
The lack of heavy war equipment such as planes and artillery.

The nature of the terrain.

The density of Arab population.

No Jewish settlements in the area.

In addition there was the British ban on the carrying of weapons.
On 17 March six members of the Palmach accompanying a convoy were killed in a clash with the British Army.
At the end of March the decision was taken to resist arms searches.

On 17 March a 16-vehicle convoy reached the city without incident.
But the following week a two-mile long, 80-vehicle convoy came under attack, and five passengers were killed.
Dov Yosef refers to a convoy being "wiped out", 27 March, but gives no details.
Two days later a 60-vehicle convoy came under attack at Hulda and was forced to turn back with 17 Jews and 5 Arabs killed.
Five captured vehicles were driven to Ramle.
A food convoy escorted by the Palmach reached the city on 6 April without casualties despite being ambushed at Dir Muhsein by a force of "150 Arabs ... joined by 80 Arabs from Abu Shushe."
It also survived a second road block at Kolonia taking six hours to reach its destination.

To coincide with Nachshon, Dov Yosef was given £100,000 and Haganah authority to conscript as many men and trucks as he needed.
He proceeded to assemble three large convoys at Bilu Camp with a stockpile of 10,000 tons of supplies.
He obtained 150 trucks from the Solel Boneh - Shelev Transport Co-operative.
A Haganah field force requisitioned a further 150 trucks with their drivers and conscripted 1,000 men as labourers.
On 15 April 131 trucks with 550 tons of food reached the city without being attacked.
The supplies included 230 tons of flour and 800 pounds of chocolate.
Two days later 300 trucks arrived in the Jewish enclave with 1,000 tons of supplies, also without incident.

The third convoy on 20 April had a harder time.
Consisting of 300 trucks with 2,000 Haganah and Irgun troops, the convoy battled all day to get through.
Twenty trucks were knocked out, ten Jews were killed and 30 wounded.

Also, during Nachshon, there was a secret convoy that brought 1,500 Palmach soldiers into the city.

After this Jewish Jerusalem was cut off from the outside world for seven weeks, with the exception of a dozen trucks which brought army supplies on 17 May.
Dov Yosef listed the problems faced in relieving Jewish Jerusalem as:
The lack of heavy war equipment such as planes and artillery.
The nature of the terrain.
The density of Arab population.
No Jewish settlements in the area.
In addition there was the British ban on the carrying of weapons. On 17 March six members of the Palmach accompanying a convoy were killed in a clash with the British Army. At the end of March the decision was taken to resist arms searches.
On 17 March a 16-vehicle convoy reached the city without incident. But the following week a two-mile long, 80-vehicle convoy came under attack, and five passengers were killed. Dov Yosef refers to a convoy being "wiped out", 27 March, but gives no details. Two days later a 60-vehicle convoy came under attack at Hulda and was forced to turn back with 17 Jews and 5 Arabs killed. Five captured vehicles were driven to Ramle. A food convoy escorted by the Palmach reached the city on 6 April without casualties despite being ambushed at Dir Muhsein by a force of "150 Arabs ... joined by 80 Arabs from Abu Shushe." It also survived a second road block at Kolonia taking six hours to reach its destination.
To coincide with Nachshon, Dov Yosef was given £100,000 and Haganah authority to conscript as many men and trucks as he needed. He proceeded to assemble three large convoys at Bilu Camp with a stockpile of 10,000 tons of supplies. He obtained 150 trucks from the Solel Boneh - Shelev Transport Co-operative. A Haganah field force requisitioned a further 150 trucks with their drivers and conscripted 1,000 men as labourers. On 15 April 131 trucks with 550 tons of food reached the city without being attacked. The supplies included 230 tons of flour and 800 pounds of chocolate. Two days later 300 trucks arrived in the Jewish enclave with 1,000 tons of supplies, also without incident.
The third convoy on 20 April had a harder time. Consisting of 300 trucks with 2,000 Haganah and Irgun troops, the convoy battled all day to get through. Twenty trucks were knocked out, ten Jews were killed and 30 wounded.
Also, during Nachshon, there was a secret convoy that brought 1,500 Palmach soldiers into the city.
After this Jewish Jerusalem was cut off from the outside world for seven weeks, with the exception of a dozen trucks which brought army supplies on 17 May.
Battle for Jerusalem