The Kenya Defence Forces (KDF) has received six new helicopters from the United States government.
They are valued at Sh11 billion.
The helicopters will aid KDF in the fight against Al Shabaab in Somalia.
Defence Cabinet Secretary Raychelle Omamo received the Huey II helicopters at the Laikipia Air Base in Nanyuki on Wednesday.
KDF will receive two more helicopters in May 2017.
"They will play a significant role in complex operations by our forces, especially in the Somalia theatre. It is an exceptional force multiplier for KDF," CS Omamo said.
US Ambassador to Kenya Robert Godec said the grant is the single largest donation to a foreign country in sub-Saharan Africa.
"This is will help in our joint efforts to fight Al-Shabaab. The US will remain a steadfast partner in fighting terrorism and radicalisation," he said.