The phrase "a direct clash between" is correct and usable in written English.
It can be used to describe a situation where two opposing forces, ideas, or groups confront each other directly.
Example: "The debate led to a direct clash between the two candidates on their policies regarding healthcare."
Alternatives: "a direct confrontation between" or "a head-on conflict between".
Croatia has adamantly rejected any proposals for remapping boundaries, setting the stage for a direct clash between the two republics.
He also suggests I claim the United States tried to incite a "direct clash" between Sunnis and Shiites in Iraq "so as to justify its presence in Iraq".
A direct clash between Turkish and Syrian government forces risks a broader confrontation between the two states' armies, potentially widening the war.
It is perhaps the first time in Texas history that there has been such a direct clash between oil and water interests.
After 150 days of squabbling over the formation of a new government, Belgium's political elite brought their fragile system of consensus rule crashing down on November 7th, with a direct clash between the two feuding linguistic groups.
The relevant passage reads: "The specter of a direct clash between Sunnis and Shiites, the main pitfall that the radicals close to Al Qaeda in Iraq were trying to ward off because it would weaken them locally and marginalize them regionally, re-emerged as a problem that the U.S. hoped to ignite so as to justify its presence in Iraq".
His conflict with Ahmad ibn Kayghalagh is indicative of his approach: instead of a direct clash, the truce between the two gave al-Ikhshid the time to reconnoitre the situation in Egypt before acting.
"You cannot have Nato forces or American forces operating in the same theatre as Russian forces without risking a very direct clash between the two".
This does not, however, make them any less dangerous; a direct clash can never be excluded.
