NAIROBI - The leaders of Iran and Kenya pledged to strengthen ties as their governments signed a raft of trade agreements Wednesday during Iranian President Ebrahim Raisi’s maiden visit to the East African nation. The visit comes as the Islamic republic tries to shore up diplomatic support to ease its international isolation, with Raisi also due to travel to Uganda and Zimbabwe this week on the first Africa tour by an Iranian leader in 11 years. In addition to meeting Kenyan President William Ruto, Raisi will head to Uganda later Wednesday for talks with his Ugandan counterpart Yoweri Museveni and see Zimbabwean President Emmerson Mnangagwa on Thursday.  Africa has emerged as a diplomatic battleground in recent months, with Russia and the West also trying to court support over Moscow’s invasion of Ukraine, which has had a devastating economic impact on the continent, sending food prices soaring. Western powers have also sought to deepen trade ties with the continent, along with India and China, which has been on an infrastructure spending spree in Africa.